<s>
Mac	B-Device
Pro	I-Device
is	O
a	O
series	O
of	O
workstations	B-Device
and	O
servers	B-Application
for	O
professionals	O
that	O
have	O
been	O
designed	O
,	O
developed	O
and	O
marketed	O
by	O
Apple	O
Inc	O
.	O
since	O
2006	O
.	O
</s>
<s>
The	O
Mac	B-Device
Pro	I-Device
,	O
by	O
some	O
performance	O
benchmarks	O
,	O
is	O
the	O
most	O
powerful	O
computer	O
that	O
Apple	O
offers	O
.	O
</s>
<s>
It	O
is	O
one	O
of	O
four	O
desktop	O
computers	O
in	O
the	O
current	O
Mac	B-Device
lineup	O
,	O
sitting	O
above	O
the	O
Mac	B-Device
Mini	I-Device
,	O
iMac	B-Device
and	O
Mac	B-Device
Studio	I-Device
.	O
</s>
<s>
Introduced	O
in	O
August	O
2006	O
,	O
the	O
first-generation	O
Mac	B-Device
Pro	I-Device
had	O
two	O
dual-core	B-Device
Xeon	I-Device
Woodcrest	O
processors	O
and	O
a	O
rectangular	O
tower	B-General_Concept
case	I-General_Concept
carried	O
over	O
from	O
the	O
Power	B-Device
Mac	I-Device
G5	I-Device
.	O
</s>
<s>
It	O
was	O
replaced	O
on	O
April	O
4	O
,	O
2007	O
,	O
by	O
a	O
dual	O
quad-core	B-Device
Xeon	I-Device
Clovertown	O
model	O
,	O
then	O
on	O
January	O
8	O
,	O
2008	O
,	O
by	O
a	O
dual	O
quad-core	B-Device
Xeon	I-Device
Harpertown	O
model	O
.	O
</s>
<s>
Revisions	O
in	O
2010	O
and	O
2012	O
revisions	O
had	O
Nehalem/Westmere	O
architecture	B-General_Concept
Intel	B-Device
Xeon	I-Device
processors	O
.	O
</s>
<s>
In	O
December	O
2013	O
,	O
Apple	O
released	O
a	O
new	O
cylindrical	O
Mac	B-Device
Pro	I-Device
(	O
colloquially	O
called	O
the	O
"	O
trash	O
can	O
Mac	B-Device
Pro	I-Device
"	O
)	O
.	O
</s>
<s>
It	O
had	O
up	O
to	O
a	O
12-core	B-Architecture
Xeon	B-Device
E5	O
processor	B-General_Concept
,	O
dual	O
AMD	B-Application
FirePro	I-Application
D	O
series	O
GPUs	B-Architecture
,	O
PCIe-based	O
flash	O
storage	O
,	O
and	O
an	O
HDMI	B-Protocol
port	O
.	O
</s>
<s>
Thunderbolt	B-Protocol
2	I-Protocol
ports	B-Protocol
brought	O
updated	O
wired	O
connectivity	O
and	O
support	O
for	O
six	O
Thunderbolt	B-Device
Displays	I-Device
.	O
</s>
<s>
Limitations	O
of	O
the	O
cylindrical	O
design	O
prevented	O
Apple	O
from	O
upgrading	O
the	O
cylindrical	O
Mac	B-Device
Pro	I-Device
with	O
more	O
powerful	O
hardware	O
.	O
</s>
<s>
The	O
2019	O
Mac	B-Device
Pro	I-Device
returned	O
to	O
a	O
tower	B-General_Concept
form	O
factor	O
reminiscent	O
of	O
the	O
first-generation	O
model	O
,	O
but	O
with	O
larger	O
air	O
cooling	O
holes	O
.	O
</s>
<s>
It	O
has	O
up	O
to	O
a	O
28-core	B-Architecture
Xeon-W	O
processor	B-General_Concept
,	O
eight	O
PCIe	O
slots	O
,	O
AMD	B-Device
Radeon	I-Device
Pro	O
Vega	O
GPUs	B-Architecture
,	O
and	O
replaces	O
most	O
data	O
ports	B-Protocol
with	O
USB-C	O
and	O
Thunderbolt	B-Protocol
3	I-Protocol
.	O
</s>
<s>
Apple	O
said	O
that	O
an	O
Intel-based	O
replacement	O
for	O
the	O
2003	O
's	O
PowerPC-based	O
Power	B-Device
Mac	I-Device
G5	I-Device
machines	O
had	O
been	O
expected	O
for	O
some	O
time	O
before	O
the	O
Mac	B-Device
Pro	I-Device
was	O
formally	O
announced	O
on	O
August	O
7	O
,	O
2006	O
,	O
at	O
the	O
annual	O
Apple	O
Worldwide	O
Developers	O
Conference	O
(	O
WWDC	O
)	O
.	O
</s>
<s>
In	O
June	O
2005	O
,	O
Apple	O
released	O
the	O
Developer	O
Transition	O
Kit	O
,	O
a	O
prototype	O
Intel	B-General_Concept
Pentium	I-General_Concept
4	I-General_Concept
–	O
based	O
Mac	B-Device
housed	O
in	O
a	O
Power	B-Device
Mac	I-Device
G5	I-Device
case	B-General_Concept
,	O
that	O
was	O
temporarily	O
available	O
to	O
developers	O
.	O
</s>
<s>
The	O
iMac	B-Device
,	O
Mac	B-Device
Mini	I-Device
,	O
MacBook	B-Device
,	O
and	O
MacBook	B-Device
Pro	I-Device
had	O
moved	O
to	O
an	O
Intel-based	O
architecture	B-General_Concept
starting	O
in	O
January	O
2006	O
,	O
leaving	O
the	O
Power	B-Device
Mac	I-Device
G5	I-Device
as	O
the	O
only	O
machine	O
in	O
the	O
Mac	B-Device
lineup	O
still	O
based	O
on	O
the	O
PowerPC	B-Architecture
processor	I-Architecture
architecture	B-General_Concept
Apple	O
had	O
used	O
since	O
1994	O
.	O
</s>
<s>
As	O
such	O
,	O
the	O
name	O
"	O
Mac	B-Device
Pro	I-Device
"	O
was	O
widely	O
used	O
before	O
the	O
machine	O
was	O
announced	O
.	O
</s>
<s>
The	O
Mac	B-Device
Pro	I-Device
is	O
in	O
the	O
Unix	B-Device
workstation	I-Device
market	O
.	O
</s>
<s>
Although	O
the	O
high-end	O
technical	O
market	O
has	O
not	O
traditionally	O
been	O
an	O
area	O
of	O
strength	O
for	O
Apple	O
,	O
the	O
company	O
has	O
been	O
positioning	O
itself	O
as	O
a	O
leader	O
in	O
non-linear	O
digital	O
editing	O
for	O
high-definition	O
video	O
,	O
which	O
demands	O
storage	O
and	O
memory	B-Architecture
far	O
in	O
excess	O
of	O
a	O
general	O
desktop	O
machine	O
.	O
</s>
<s>
Additionally	O
,	O
the	O
codecs	B-General_Concept
used	O
in	O
these	O
applications	O
are	O
generally	O
processor	B-General_Concept
intensive	O
and	O
highly	O
threadable	B-Operating_System
,	O
which	O
Apple	O
's	O
ProRes	B-Algorithm
white	O
paper	O
describes	O
as	O
scaling	O
almost	O
linearly	O
with	O
additional	O
processor	B-Architecture
cores	I-Architecture
.	O
</s>
<s>
Apple	O
's	O
previous	O
machine	O
aimed	O
at	O
this	O
market	O
,	O
the	O
Power	B-Device
Mac	I-Device
G5	I-Device
,	O
has	O
up	O
to	O
two	O
dual-core	B-Architecture
processors	I-Architecture
(	O
marketed	O
as	O
"	O
Quad-Core	B-Architecture
"	O
)	O
,	O
but	O
lacks	O
the	O
storage	O
expansion	O
capabilities	O
of	O
the	O
newer	O
design	O
.	O
</s>
<s>
Original	O
marketing	O
materials	O
for	O
the	O
Mac	B-Device
Pro	I-Device
generally	O
referred	O
to	O
the	O
middle-of-the-line	O
model	O
with	O
2	O
×	O
dual-core	B-Architecture
2.66GHz	O
processors	O
.	O
</s>
<s>
Previously	O
,	O
Apple	O
featured	O
the	O
base	O
model	O
with	O
the	O
words	O
"	O
starting	O
at	O
"	O
or	O
"	O
from	O
"	O
when	O
describing	O
the	O
pricing	O
,	O
but	O
the	O
online	O
US	O
Apple	O
Store	O
listed	O
the	O
"	O
Mac	B-Device
Pro	I-Device
at	O
$2499	O
"	O
,	O
the	O
price	O
for	O
the	O
mid-range	O
model	O
.	O
</s>
<s>
The	O
system	O
could	O
be	O
configured	O
at	O
US$2299	O
,	O
much	O
more	O
comparable	O
with	O
the	O
former	O
base-model	O
dual-core	B-Architecture
G5	B-Device
at	O
US$1999	O
,	O
although	O
offering	O
considerably	O
more	O
processing	O
power	O
.	O
</s>
<s>
Post	O
revision	O
,	O
the	O
default	O
configurations	O
for	O
the	O
Mac	B-Device
Pro	I-Device
includes	O
one	O
quad-core	B-Device
Xeon	I-Device
3500	O
at	O
2.66GHz	O
or	O
two	O
quad-core	B-Device
Xeon	I-Device
5500s	O
at	O
2.26GHz	O
each	O
.	O
</s>
<s>
Like	O
its	O
predecessor	O
,	O
the	O
Power	B-Device
Mac	I-Device
G5	I-Device
,	O
the	O
pre-2013	O
Mac	B-Device
Pro	I-Device
was	O
Apple	O
's	O
only	O
desktop	O
with	O
standard	O
expansion	B-Device
slots	I-Device
for	O
graphics	B-Device
adapters	I-Device
and	O
other	O
expansion	B-Device
cards	I-Device
.	O
</s>
<s>
Apple	O
received	O
criticism	O
after	O
an	O
incremental	O
upgrade	O
to	O
the	O
Mac	B-Device
Pro	I-Device
line	O
following	O
the	O
2012	O
WWDC	O
conference	O
.	O
</s>
<s>
The	O
line	O
received	O
more	O
default	O
memory	B-Architecture
and	O
increased	O
processor	B-General_Concept
speed	O
but	O
still	O
used	O
Intel	O
's	O
older	O
Westmere-EP	B-Device
processors	O
instead	O
of	O
the	O
newer	O
E5	O
series	O
.	O
</s>
<s>
The	O
line	O
also	O
lacked	O
then-current	O
technologies	O
like	O
SATA	O
III	O
,	O
USB	B-Protocol
3	O
,	O
and	O
Thunderbolt	B-Protocol
,	O
the	O
last	O
of	O
which	O
had	O
been	O
added	O
to	O
every	O
other	O
Macintosh	B-Device
at	O
that	O
point	O
.	O
</s>
<s>
Apple	O
stopped	O
shipping	O
the	O
first-generation	O
Mac	B-Device
Pro	I-Device
in	O
Europe	O
on	O
March	O
1	O
,	O
2013	O
after	O
an	O
amendment	O
to	O
a	O
safety	O
regulation	O
left	O
the	O
professional	O
Mac	B-Device
non-compliant	O
.	O
</s>
<s>
The	O
first-generation	O
Mac	B-Device
Pro	I-Device
was	O
removed	O
from	O
Apple	O
's	O
online	O
store	O
following	O
the	O
unveiling	O
of	O
the	O
redesigned	O
cylindrical	O
Mac	B-Device
Pro	I-Device
at	O
a	O
media	O
event	O
on	O
October	O
22	O
,	O
2013	O
.	O
</s>
<s>
All	O
Mac	B-Device
Pro	I-Device
systems	O
were	O
available	O
with	O
one	O
or	O
two	O
central	B-General_Concept
processing	I-General_Concept
units	I-General_Concept
(	O
CPU	B-Device
)	O
with	O
options	O
giving	O
2	O
,	O
4	O
,	O
6	O
,	O
8	O
,	O
or	O
12	O
cores	B-Architecture
.	O
</s>
<s>
As	O
an	O
example	O
,	O
the	O
8-core	B-Architecture
standard	O
configuration	O
Mac	B-Device
Pro	I-Device
2010	O
uses	O
two	O
4-core	B-Architecture
Intel	O
E5620	O
Xeon	B-Device
CPUs	B-Device
at	O
2.4GHz	O
,	O
but	O
could	O
be	O
configured	O
with	O
two	O
6-core	B-Architecture
Intel	B-Device
Xeon	I-Device
X5670	O
CPUs	B-Device
at	O
2.93GHz	O
.	O
</s>
<s>
The	O
2006	O
–	O
2008	O
models	O
use	O
the	O
LGA	B-Device
771	I-Device
socket	O
,	O
while	O
the	O
Early	O
2009	O
and	O
later	O
use	O
the	O
LGA	B-Device
1366	I-Device
socket	O
,	O
meaning	O
either	O
can	O
be	O
removed	O
and	O
replaced	O
with	O
compatible	O
64-bit	B-Device
Intel	B-Device
Xeon	I-Device
CPUs	I-Device
.	O
</s>
<s>
A	O
64-bit	B-Device
EFI	B-Architecture
firmware	O
was	O
not	O
introduced	O
until	O
the	O
MacPro3	O
,	O
1	O
,	O
earlier	O
models	O
can	O
only	O
operate	O
as	O
32-bit	B-Application
despite	O
having	O
64-bit	B-Device
Xeon	B-Device
processors	O
,	O
however	O
this	O
only	O
applies	O
to	O
the	O
EFI	B-Architecture
side	O
of	O
the	O
System	O
,	O
as	O
the	O
Mac	B-Device
boots	O
everything	O
else	O
in	O
BIOS	B-Operating_System
Compatibility	O
mode	O
,	O
and	O
operating	B-General_Concept
systems	I-General_Concept
can	O
take	O
advantage	O
of	O
full	O
64	B-Device
bit	I-Device
support	O
.	O
</s>
<s>
The	O
newer	O
LGA	B-Device
1366	I-Device
sockets	O
utilize	O
Intel	O
's	O
QuickPath	B-Architecture
Interconnect	I-Architecture
(	O
QPI	B-Architecture
)	O
integrated	O
into	O
the	O
CPU	B-Device
in	O
lieu	O
of	O
an	O
independent	O
system	B-Architecture
bus	I-Architecture
;	O
this	O
means	O
the	O
"	O
bus	O
"	O
frequency	O
is	O
relative	O
to	O
the	O
CPU	B-Device
chipset	B-Device
,	O
and	O
upgrading	O
a	O
CPU	B-Device
is	O
not	O
bottlenecked	O
by	O
the	O
computer	O
's	O
existing	O
architecture	B-General_Concept
.	O
</s>
<s>
The	O
original	O
Mac	B-Device
Pro	I-Device
's	O
main	O
memory	B-Architecture
uses	O
667MHz	O
DDR2	O
ECC	B-General_Concept
FB-DIMMs	B-General_Concept
;	O
the	O
early	O
2008	O
model	O
uses	O
800MHz	O
ECC	B-General_Concept
DDR2	O
FB-DIMMS	B-General_Concept
,	O
the	O
2009	O
and	O
onward	O
Mac	B-Device
Pro	I-Device
use	O
1066MHz	O
DDR3	O
ECC	B-General_Concept
DIMMs	B-General_Concept
for	O
the	O
standard	O
models	O
,	O
and	O
1333MHz	O
DDR3	O
ECC	B-General_Concept
DIMMs	B-General_Concept
for	O
systems	O
configured	O
with	O
2.66GHz	O
or	O
faster	O
CPUs	B-Device
.	O
</s>
<s>
In	O
the	O
original	O
and	O
2008	O
models	O
,	O
these	O
modules	O
are	O
installed	O
in	O
pairs	O
,	O
one	O
each	O
on	O
two	O
riser	B-Architecture
cards	I-Architecture
.	O
</s>
<s>
The	O
cards	O
have	O
4	O
DIMM	B-General_Concept
slots	O
each	O
,	O
allowing	O
a	O
total	O
of	O
32GB	O
(	O
1GB	O
=	O
10243	O
B	O
)	O
of	O
memory	B-Architecture
(	O
8	O
×	O
4GB	O
)	O
to	O
be	O
installed	O
.	O
</s>
<s>
Notably	O
,	O
due	O
to	O
its	O
FB-DIMM	B-General_Concept
architecture	B-General_Concept
,	O
installing	O
more	O
RAM	B-Architecture
in	O
the	O
Mac	B-Device
Pro	I-Device
will	O
improve	O
its	O
memory	B-Architecture
bandwidth	O
,	O
but	O
may	O
also	O
increase	O
its	O
memory	B-Architecture
latency	O
.	O
</s>
<s>
With	O
a	O
simple	O
installation	O
of	O
a	O
single	O
FB-DIMM	B-General_Concept
,	O
the	O
peak	O
bandwidth	O
is	O
8000MB/s	O
(	O
1MB	O
=	O
10002	O
B	O
)	O
,	O
but	O
this	O
can	O
increase	O
to	O
16000MB/s	O
by	O
installing	O
two	O
FB-DIMMs	B-General_Concept
,	O
one	O
on	O
each	O
of	O
the	O
two	O
buses	O
,	O
which	O
is	O
the	O
default	O
configuration	O
from	O
Apple	O
.	O
</s>
<s>
While	O
electrically	O
the	O
FB-DIMMs	B-General_Concept
are	O
standard	O
,	O
for	O
pre-2009	O
Mac	B-Device
Pro	I-Device
models	O
Apple	O
specifies	O
larger-than-normal	O
heatsinks	O
on	O
the	O
memory	B-Architecture
modules	O
.	O
</s>
<s>
Problems	O
have	O
been	O
reported	O
by	O
users	O
who	O
have	O
used	O
third	O
party	O
RAM	B-Architecture
with	O
normal	O
size	O
FB-DIMM	B-General_Concept
heatsinks	O
.	O
</s>
<s>
2009	O
and	O
later	O
Mac	B-Device
Pro	I-Device
computers	O
do	O
not	O
require	O
memory	B-Architecture
modules	O
with	O
heatsinks	O
.	O
</s>
<s>
The	O
Mac	B-Device
Pro	I-Device
had	O
room	O
for	O
four	O
internal	O
3.5	O
"	O
SATA-300	O
hard	B-Device
drives	I-Device
in	O
four	O
internal	O
"	O
bays	O
"	O
.	O
</s>
<s>
The	O
hard	B-Device
drives	I-Device
were	O
mounted	O
on	O
individual	O
trays	O
(	O
also	O
known	O
as	O
"	O
sleds	O
"	O
)	O
by	O
captive	O
screws	O
.	O
</s>
<s>
Adding	O
hard	B-Device
drives	I-Device
to	O
the	O
system	O
did	O
not	O
require	O
cables	O
to	O
be	O
attached	O
as	O
the	O
drive	O
was	O
connected	O
to	O
the	O
system	O
simply	O
by	O
being	O
inserted	O
into	O
the	O
corresponding	O
drive	O
slot	O
.	O
</s>
<s>
A	O
case	B-General_Concept
lock	O
on	O
the	O
back	O
of	O
the	O
system	O
locked	O
the	O
disks	O
trays	O
into	O
their	O
positions	O
.	O
</s>
<s>
The	O
Mac	B-Device
Pro	I-Device
also	O
supported	O
Serial	O
ATA	O
solid-state	B-Device
drives	I-Device
(	O
SSD	B-Device
)	O
in	O
the	O
4	O
hard	B-Device
drive	I-Device
bays	O
via	O
an	O
SSD-to-hard	O
drive	O
sled	O
adapter	O
(	O
mid-2010	O
models	O
and	O
later	O
)	O
,	O
and	O
by	O
third-party	O
solutions	O
for	O
earlier	O
models	O
(	O
e.g.	O
,	O
by	O
an	O
adapter/bracket	O
which	O
plugged	O
into	O
an	O
unused	O
PCIe	O
slot	O
)	O
.	O
</s>
<s>
Various	O
2.5-inch	O
SSD	B-Device
drive	I-Device
capacities	O
and	O
configurations	O
were	O
available	O
as	O
options	O
.	O
</s>
<s>
The	O
Mac	B-Device
Pro	I-Device
was	O
also	O
available	O
with	O
an	O
optional	O
hardware	O
RAID	B-Architecture
card	O
.	O
</s>
<s>
With	O
the	O
addition	O
of	O
a	O
SAS	O
controller	O
card	O
or	O
SAS	O
RAID	B-Architecture
controller	O
card	O
,	O
SAS	O
drives	O
could	O
be	O
directly	O
connected	O
to	O
the	O
system	O
's	O
SATA	O
ports	B-Protocol
.	O
</s>
<s>
Two	O
optical	O
drive	B-Device
bays	I-Device
were	O
provided	O
,	O
each	O
with	O
a	O
corresponding	O
SATA	O
port	O
and	O
an	O
Ultra	B-Protocol
ATA/100	I-Protocol
port	O
.	O
</s>
<s>
The	O
Mac	B-Device
Pro	I-Device
had	O
one	O
PATA	B-Protocol
port	O
and	O
could	O
support	O
two	O
PATA	B-Protocol
devices	O
in	O
the	O
optical	O
drive	B-Device
bays	I-Device
.	O
</s>
<s>
It	O
had	O
a	O
total	O
of	O
six	O
SATA	O
ports	B-Protocol
–	O
four	O
were	O
connected	O
to	O
the	O
system	O
's	O
drive	B-Device
bays	I-Device
,	O
and	O
two	O
were	O
not	O
connected	O
.	O
</s>
<s>
The	O
extra	O
SATA	O
ports	B-Protocol
could	O
be	O
put	O
into	O
service	O
through	O
the	O
use	O
of	O
after-market	O
extender	O
cables	O
to	O
connect	O
internal	O
optical	O
drives	O
,	O
or	O
to	O
provide	O
eSATA	O
ports	B-Protocol
with	O
the	O
use	O
of	O
an	O
eSATA	O
bulkhead	O
connector	O
.	O
</s>
<s>
However	O
,	O
the	O
two	O
extra	O
SATA	O
ports	B-Protocol
were	O
unsupported	O
and	O
disabled	O
under	O
Boot	B-Application
Camp	I-Application
.	O
</s>
<s>
The	O
2008	O
model	O
had	O
two	O
PCI	O
Express	O
(	O
PCIe	O
)	O
2.0	O
expansion	B-Device
slots	I-Device
and	O
two	O
PCI	O
Express	O
1.1	O
slots	O
,	O
providing	O
them	O
with	O
up	O
to	O
300	O
W	O
of	O
power	O
in	O
total	O
.	O
</s>
<s>
The	O
first	O
slot	O
was	O
double	O
wide	O
and	O
intended	O
to	O
hold	O
the	O
main	O
video	B-Device
card	I-Device
,	O
arranged	O
with	O
an	O
empty	O
area	O
the	O
width	O
of	O
a	O
normal	O
card	O
beside	O
it	O
to	O
leave	O
room	O
for	O
the	O
large	O
coolers	B-General_Concept
modern	O
cards	O
often	O
use	O
.	O
</s>
<s>
Instead	O
of	O
the	O
tiny	O
screws	O
typically	O
used	O
to	O
fasten	O
the	O
cards	O
to	O
the	O
case	B-General_Concept
,	O
in	O
the	O
Mac	B-Device
Pro	I-Device
a	O
single	O
"	O
bar	O
"	O
held	O
the	O
cards	O
in	O
place	O
,	O
which	O
is	O
itself	O
held	O
in	O
place	O
by	O
two	O
"	O
captive	O
"	O
thumbscrews	O
that	O
can	O
be	O
loosened	O
by	O
hand	O
without	O
tools	O
and	O
will	O
not	O
fall	O
out	O
of	O
the	O
case	B-General_Concept
.	O
</s>
<s>
On	O
the	O
original	O
Mac	B-Device
Pro	I-Device
introduced	O
in	O
August	O
2006	O
,	O
the	O
PCIe	O
slots	O
can	O
be	O
configured	O
individually	O
to	O
give	O
more	O
bandwidth	O
to	O
devices	O
that	O
require	O
it	O
,	O
with	O
a	O
total	O
of	O
40	O
"	O
lanes	O
"	O
,	O
or	O
13GB/s	O
total	O
throughput	O
.	O
</s>
<s>
When	O
running	O
Mac	B-Device
OS	I-Device
X	I-Device
,	O
the	O
Mac	B-Device
Pro	I-Device
did	O
not	O
support	O
SLI	B-Device
or	O
ATI	O
CrossFire	O
,	O
limiting	O
its	O
ability	O
to	O
use	O
the	O
latest	O
"	O
high-end	O
gaming	O
"	O
video	B-Device
card	I-Device
products	O
;	O
however	O
,	O
individuals	O
have	O
reported	O
success	O
with	O
both	O
CrossFire	O
and	O
SLI	B-Device
installations	O
when	O
running	O
Windows	B-Application
XP	I-Application
,	O
as	O
SLI	B-Device
and	O
CrossFire	O
compatibility	O
is	O
largely	O
a	O
function	O
of	O
software	O
.	O
</s>
<s>
The	O
bandwidth	O
allocation	O
of	O
the	O
PCIe	O
slots	O
can	O
be	O
configured	O
via	O
the	O
Expansion	B-Device
Slot	I-Device
Utility	O
included	O
with	O
Mac	B-Device
OS	I-Device
X	I-Device
only	O
on	O
the	O
August	O
2006	O
Mac	B-Device
Pro	I-Device
.	O
</s>
<s>
The	O
Early-2008	O
and	O
later	O
Mac	B-Device
Pros	I-Device
had	O
PCIe	O
slots	O
hardwired	O
as	O
in	O
the	O
accompanying	O
table	O
.	O
</s>
<s>
For	O
external	O
connectivity	O
,	O
the	O
Mac	B-Device
Pro	I-Device
included	O
five	O
USB	B-Protocol
2.0	O
ports	B-Protocol
,	O
two	O
FireWire	B-Protocol
400	O
and	O
two	O
FireWire	B-Protocol
800	O
(	O
Late	O
2006	O
until	O
Early	O
2008	O
)	O
,	O
respectively	O
four	O
FireWire	B-Protocol
800	O
(	O
Early	O
2009	O
until	O
Mid	O
2012	O
)	O
ports	B-Protocol
.	O
</s>
<s>
Networking	B-Architecture
was	O
supported	O
with	O
two	O
built-in	O
Gigabit	O
Ethernet	O
ports	B-Protocol
.	O
</s>
<s>
802.11	O
a/b/g/n	O
Wi-Fi	O
support	O
(	O
AirPort	B-Device
Extreme	I-Device
)	O
required	O
an	O
optional	O
module	O
in	O
the	O
Mid	O
2006	O
,	O
Early	O
2008	O
and	O
Early	O
2009	O
models	O
,	O
whereas	O
in	O
the	O
2010	O
model	O
and	O
later	O
Wi-Fi	O
was	O
standard	O
.	O
</s>
<s>
Bluetooth	B-Protocol
also	O
required	O
an	O
optional	O
module	O
in	O
the	O
Mid	O
2006	O
model	O
,	O
but	O
was	O
standard	O
in	O
the	O
Early	O
2008	O
and	O
newer	O
models	O
.	O
</s>
<s>
Displays	O
were	O
supported	O
by	O
one	O
or	O
(	O
optionally	O
)	O
more	O
PCIe	O
graphics	B-Device
cards	I-Device
.	O
</s>
<s>
More	O
recent	O
cards	O
featured	O
two	O
Mini	B-Protocol
DisplayPort	I-Protocol
connectors	O
and	O
one	O
dual-link	O
Digital	B-Protocol
Visual	I-Protocol
Interface	I-Protocol
(	O
DVI	B-Application
)	O
port	O
,	O
with	O
various	O
configurations	O
of	O
on-card	O
graphics	O
memory	B-Architecture
available	O
.	O
</s>
<s>
Digital	O
(	O
TOSlink	B-Protocol
optical	O
)	O
audio	O
and	O
analog	O
3.5mm	O
stereo	O
mini	B-Device
jacks	I-Device
for	O
sound	O
in	O
and	O
out	O
were	O
included	O
,	O
the	O
latter	O
becoming	O
available	O
on	O
both	O
the	O
front	O
and	O
back	O
of	O
the	O
case	B-General_Concept
.	O
</s>
<s>
Unlike	O
other	O
Mac	B-Device
computers	I-Device
,	O
the	O
Mac	B-Device
Pro	I-Device
did	O
not	O
include	O
an	O
infrared	O
receiver	O
(	O
required	O
to	O
use	O
the	O
Apple	B-Operating_System
Remote	I-Operating_System
)	O
.	O
</s>
<s>
In	O
Mac	B-Application
OS	I-Application
X	I-Application
Leopard	I-Application
,	O
Front	B-Operating_System
Row	I-Operating_System
could	O
be	O
accessed	O
on	O
the	O
Mac	B-Device
Pro	I-Device
(	O
and	O
other	O
Macs	B-Device
)	O
using	O
the	O
Command	B-Device
( ⌘	O
)	O
-Escape	O
keystroke	B-Application
.	O
</s>
<s>
From	O
2006	O
through	O
2012	O
,	O
the	O
exterior	O
of	O
the	O
Mac	B-Device
Pro	I-Device
's	O
aluminum	O
case	B-General_Concept
was	O
very	O
similar	O
to	O
that	O
of	O
the	O
Power	B-Device
Mac	I-Device
G5	I-Device
,	O
with	O
the	O
exception	O
of	O
an	O
additional	O
optical	O
drive	B-Device
bay	I-Device
,	O
a	O
new	O
arrangement	O
of	O
I/O	B-Protocol
ports	I-Protocol
on	O
both	O
the	O
front	O
and	O
the	O
back	O
,	O
and	O
one	O
less	O
exhaust	O
vent	O
on	O
the	O
back	O
.	O
</s>
<s>
The	O
case	B-General_Concept
could	O
be	O
opened	O
by	O
operating	O
a	O
single	O
lever	O
on	O
the	O
back	O
,	O
which	O
unlocked	O
one	O
of	O
the	O
two	O
sides	O
of	O
the	O
machine	O
,	O
as	O
well	O
as	O
the	O
drive	B-Device
bays	I-Device
.	O
</s>
<s>
All	O
of	O
the	O
expansion	B-Device
slots	I-Device
for	O
memory	B-Architecture
,	O
PCIe	O
cards	O
and	O
drives	O
could	O
be	O
accessed	O
with	O
the	O
side	O
panel	O
removed	O
and	O
no	O
tools	O
were	O
required	O
for	O
installation	O
.	O
</s>
<s>
The	O
Mac	B-Device
Pro	I-Device
's	O
Xeon	B-Device
processors	O
generated	O
much	O
less	O
heat	O
than	O
the	O
previous	O
2-core	B-Architecture
G5s	B-Device
,	O
so	O
the	O
size	O
of	O
the	O
internal	O
cooling	O
devices	O
were	O
reduced	O
significantly	O
.	O
</s>
<s>
This	O
allowed	O
the	O
interior	O
to	O
be	O
re-arranged	O
,	O
leaving	O
more	O
room	O
at	O
the	O
top	O
of	O
the	O
case	B-General_Concept
and	O
doubling	O
the	O
number	O
of	O
internal	O
drive	B-Device
bays	I-Device
.	O
</s>
<s>
This	O
also	O
allowed	O
the	O
elimination	O
of	O
the	O
large	O
clear	O
plastic	O
air	O
deflector	O
used	O
as	O
part	O
of	O
the	O
cooling	O
system	O
in	O
the	O
Power	B-Device
Mac	I-Device
G5	I-Device
.	O
</s>
<s>
Less	O
heat	O
also	O
meant	O
less	O
air	O
to	O
move	O
out	O
of	O
the	O
case	B-General_Concept
for	O
cooling	O
during	O
normal	O
operations	O
;	O
the	O
Mac	B-Device
Pro	I-Device
was	O
very	O
quiet	O
in	O
normal	O
operation	O
,	O
quieter	O
than	O
the	O
much	O
noisier	O
Power	B-Device
Mac	I-Device
G5	I-Device
,	O
and	O
proved	O
difficult	O
to	O
measure	O
using	O
common	O
sound	O
pressure	O
level	O
meters	O
.	O
</s>
<s>
The	O
front	O
of	O
the	O
case	B-General_Concept
,	O
which	O
has	O
small	O
perforated	O
holes	O
across	O
its	O
entire	O
surface	O
area	O
,	O
has	O
caused	O
Macintosh	B-Device
enthusiasts	O
to	O
refer	O
to	O
the	O
first	O
generation	O
as	O
the	O
"	O
cheese	O
grater	O
"	O
Mac	B-Device
Pro	I-Device
.	O
</s>
<s>
The	O
Mac	B-Device
Pro	I-Device
comes	O
with	O
EFI	B-Architecture
1.1	O
,	O
a	O
successor	O
to	O
Apple	O
's	O
use	O
of	O
Open	B-Architecture
Firmware	I-Architecture
and	O
the	O
wider	O
industry	O
's	O
use	O
of	O
BIOS	B-Operating_System
.	O
</s>
<s>
Apple	O
's	O
Boot	B-Application
Camp	I-Application
provides	O
BIOS	B-Operating_System
backwards	O
compatibility	O
,	O
allowing	O
dual	O
and	O
triple	O
boot	O
configurations	O
.	O
</s>
<s>
These	O
operating	B-General_Concept
systems	I-General_Concept
are	O
installable	O
on	O
Intel	B-Operating_System
x86	I-Operating_System
–	O
based	O
Apple	O
computers	O
:	O
</s>
<s>
This	O
is	O
made	O
possible	O
by	O
the	O
presence	O
of	O
an	O
x86	B-Operating_System
Intel	O
architecture	B-General_Concept
as	O
provided	O
by	O
the	O
CPU	B-Device
and	O
the	O
BIOS	B-Operating_System
emulation	B-Application
which	O
Apple	O
has	O
provided	O
on	O
top	O
of	O
EFI	B-Architecture
.	O
</s>
<s>
Installing	O
any	O
additional	O
operating	B-Application
system	I-Application
other	O
than	O
Windows	O
is	O
not	O
supported	O
directly	O
by	O
Apple	O
.	O
</s>
<s>
Though	O
Apple	O
's	O
Boot	B-Application
Camp	I-Application
drivers	B-Application
are	O
only	O
for	O
Windows	O
,	O
it	O
is	O
often	O
possible	O
to	O
achieve	O
full	O
or	O
nearly	O
full	O
compatibility	O
with	O
another	O
OS	O
by	O
using	O
third-party	O
drivers	B-Application
.	O
</s>
<s>
Model	O
Mid	O
2006	O
Early	O
2008	O
Early	O
2009	O
Mid	O
2010	O
Mid	O
2012	O
Component	O
Intel	B-Device
Xeon	I-Device
Woodcrest	O
Intel	B-Device
Xeon	I-Device
Harpertown	O
Intel	B-Device
Xeon	I-Device
Nehalem	B-Device
and	O
Bloomfield	B-Device
Intel	B-Device
Xeon	I-Device
Westmere	B-Device
Timetable	O
Released	O
August	O
7	O
,	O
2006April	O
4	O
,	O
2007	O
January	O
8	O
,	O
2008	O
March	O
3	O
,	O
2009December	O
4	O
,	O
2009	O
July	O
27	O
,	O
2010	O
June	O
11	O
,	O
2012	O
Discontined	O
January	O
8	O
,	O
2008	O
March	O
3	O
,	O
2009	O
July	O
27	O
,	O
2010	O
June	O
11	O
,	O
2012	O
October	O
22	O
,	O
2013	O
Models	O
Model	O
number	O
A1186	O
(	O
EMC	O
2113	O
)	O
A1186	O
A1289	O
Model	O
identifier	O
MacPro1	O
,	O
1	O
MacPro3	O
,	O
1	O
MacPro4	O
,	O
1	O
MacPro5	O
,	O
1	O
Order	O
number	O
MA356	O
MA970	O
MB871	O
MB535	O
MC560	O
MC250	O
MC561	O
MD770	O
MD772	O
MD771	O
ROM	O
EFI	B-Architecture
mode	O
EFI32	O
EFI64	O
Kernel	B-Operating_System
mode	O
32-bit	B-Application
64-bit	B-Device
Chipset	B-Device
Intel	O
5000X	O
Intel	O
5400	O
Intel	B-Device
X58	I-Device
Intel	O
5520	O
Intel	B-Device
X58	I-Device
for	O
single	O
CPU	B-Device
systems	O
,	O
Intel	O
5520	O
for	O
dual	B-Architecture
CPU	I-Architecture
systems	O
Processor	B-General_Concept
Standard	O
Two	O
2.66	O
GHz	O
2-core	B-Architecture
Intel	B-Device
Xeon	I-Device
Woodcrest	O
(	O
5150	O
)	O
Two	O
2.8	O
GHz	O
4-core	B-Architecture
Intel	B-Device
Xeon	I-Device
Harpertown	O
(	O
E5462	O
)	O
One	O
2.66	O
GHz	O
4-core	B-Architecture
Intel	B-Device
Xeon	I-Device
Bloomfield	B-Device
(	O
W3520	O
)	O
Two	O
2.26	O
GHz	O
4-core	B-Architecture
Intel	B-Device
Xeon	I-Device
Gainestown	O
(	O
E5520	O
)	O
One	O
2.8	O
GHz	O
4-core	B-Architecture
Intel	B-Device
Xeon	I-Device
Bloomfield	B-Device
(	O
W3530	O
)	O
Two	O
2.4	O
GHz	O
4-core	B-Architecture
Intel	B-Device
Xeon	I-Device
Gulftown	B-Device
(	O
E5620	O
)	O
Two	O
2.66	O
GHz	O
6-core	B-Architecture
Intel	B-Device
Xeon	I-Device
Gulftown	B-Device
(	O
X5650	O
)	O
One	O
3.2	O
GHz	O
4-core	B-Architecture
Intel	B-Device
Xeon	I-Device
Bloomfield	B-Device
(	O
W3565	O
)	O
Two	O
2.4	O
GHz	O
6-core	B-Architecture
Intel	B-Device
Xeon	I-Device
Westmere-EP	B-Device
(	O
E5645	O
)	O
Cache	O
4	O
MB	O
L2	O
12	O
MB	O
L2	O
8	O
MB	O
L3	O
12	O
MB	O
L3	O
8	O
MB	O
L3	O
12	O
MB	O
L3	O
Option	O
System	B-Architecture
bus	I-Architecture
Speed	O
1333	O
MHz	O
1600	O
MHz	O
4.8	O
GT/s	O
(	O
4-core	B-Architecture
models	O
only	O
)	O
or	O
6.4	O
GT/s	O
4.8	O
GT/s	O
(	O
4-core	B-Architecture
models	O
only	O
)	O
,	O
5.86	O
GT/s	O
(	O
8-core	B-Architecture
models	O
only	O
)	O
or	O
6.4	O
GT/s	O
4.8	O
GT/s	O
(	O
4-core	B-Architecture
models	O
only	O
)	O
,	O
5.86	O
GT/s	O
(	O
12-core	B-Architecture
models	O
only	O
)	O
or	O
6.4	O
GT/s	O
ProcessFront-side	O
busQuickPath	O
Interconnect	O
Memory	B-Architecture
Standard	O
1	O
GB	O
(	O
two	O
512	O
MB	O
)	O
of	O
667	O
MHz	O
DDR2	O
ECC	B-General_Concept
fully	B-General_Concept
buffered	I-General_Concept
DIMM	I-General_Concept
2	O
GB	O
(	O
two	O
1	O
GB	O
)	O
of	O
800	O
MHz	O
DDR2	O
ECC	B-General_Concept
fully	B-General_Concept
buffered	I-General_Concept
DIMM	I-General_Concept
3	O
GB	O
(	O
three	O
1	O
GB	O
)	O
1066	O
MHz	O
DDR3	O
ECC	B-General_Concept
DIMM	B-General_Concept
6	O
GB	O
(	O
six	O
1	O
GB	O
)	O
1066	O
MHz	O
DDR3	O
ECC	B-General_Concept
DIMM	B-General_Concept
3	O
GB	O
(	O
three	O
1	O
GB	O
)	O
for	O
4	O
-	O
and	O
6-core	B-Architecture
models	O
or	O
6	O
GB	O
(	O
six	O
1	O
GB	O
)	O
for	O
8	O
-	O
and	O
12-core	B-Architecture
models	O
of	O
1333	O
MHz	O
ECC	B-General_Concept
DDR3	O
SDRAM	O
6	O
GB	O
(	O
three	O
2	O
GB	O
)	O
1333	O
MHz	O
ECC	B-General_Concept
DDR3	O
SDRAM	O
8	O
GB	O
(	O
four	O
2	O
GB	O
)	O
1333	O
MHz	O
ECC	B-General_Concept
DDR3	O
SDRAM	O
12	O
GB	O
(	O
six	O
2	O
GB	O
)	O
1333	O
MHz	O
ECC	B-General_Concept
DDR3	O
SDRAM	O
Expansion	O
Graphics	O
Nvidia	O
GeForce	O
7300	O
GT	O
with	O
256	O
MB	O
GDDR3	O
SDRAM	O
(	O
two	O
dual-link	B-Protocol
DVI	I-Protocol
ports	B-Protocol
)	O
ATI	B-Device
Radeon	I-Device
HD	O
2600	O
XT	O
with	O
256	O
MB	O
GDDR3	O
SDRAM	O
(	O
two	O
dual-link	B-Protocol
DVI	I-Protocol
ports	B-Protocol
)	O
Nvidia	O
GeForce	O
GT	O
120	O
with	O
512	O
MB	O
GDDR3	O
SDRAM	O
(	O
one	O
mini-DisplayPort	B-Protocol
and	O
one	O
dual-link	B-Protocol
DVI	I-Protocol
port	O
)	O
ATI	B-Device
Radeon	I-Device
HD	O
5770	O
with	O
1	O
GB	O
GDDR5	O
memory	B-Architecture
(	O
two	O
Mini	B-Protocol
DisplayPorts	I-Protocol
and	O
one	O
dual-link	B-Protocol
DVI	I-Protocol
port	O
)	O
Secondary	O
storage	O
Capacity	O
250	O
GB	O
with	O
8	O
MB	O
cache	O
320	O
GB	O
SATA	O
with	O
8	O
MB	O
cache	O
640	O
GB	O
with	O
16	O
MB	O
cache	O
1	O
TB	O
SATA	O
with	O
32	O
MB	O
cache	O
Type	O
7200-rpm	O
SATA	O
Hard	B-Device
drive	I-Device
7200-rpm	O
SATA	O
Hard	B-Device
drive	I-Device
or	O
15k-rpm	O
SAS	O
Hard	B-Device
Drive	I-Device
7200-rpm	O
SATA	O
Hard	B-Device
drive	I-Device
7200-rpm	O
SATA	O
Hard	B-Device
drive	I-Device
or	O
Solid	B-Device
State	I-Device
Drive	I-Device
Transfer	O
SATA	O
2.0	O
(	O
3	O
Gbit/s	O
)	O
Optical	O
drive16×	O
SuperDrive	B-Device
with	O
double-layer	O
support	O
(	O
DVD±R	O
DL/DVD	O
±	O
RW/CD	O
-RW	O
)	O
18×	O
SuperDrive	B-Device
with	O
double-layer	O
support	O
(	O
DVD±R	O
DL/DVD	O
±	O
RW/CD	O
-RW	O
)	O
Connectivity	O
Bluetooth	B-Protocol
2.0	I-Protocol
+EDR	I-Protocol
Wi-Fi	O
4	O
(	O
802.11a/b/g/n	O
)	O
2×	O
Gigabit	O
EthernetBluetooth	O
2.1	O
+EDR	O
Peripherals	O
5×	O
USB	B-Protocol
2.02	O
×	O
FireWire	B-Protocol
4002×	O
FireWire	B-Protocol
800Built-in	O
mono	O
speaker1×	O
Audio-in	O
mini-jack2	O
×	O
Audio-out	O
mini-jack1	O
×	O
Optical	O
S/PDIF	O
(	O
Toslink	B-Protocol
)	O
input1×	O
Optical	O
S/PDIF	O
(	O
Toslink	B-Protocol
)	O
output	O
5×	O
USB	B-Protocol
2.04	O
×	O
FireWire	B-Protocol
800Built-in	O
mono	O
speaker1×	O
Audio-in	O
mini-jack2	O
×	O
Audio-out	O
mini-jack1	O
×	O
Optical	O
S/PDIF	O
(	O
Toslink	B-Protocol
)	O
input1×	O
Optical	O
S/PDIF	O
(	O
Toslink	B-Protocol
)	O
output	O
Dimensions	O
20.1	O
in	O
(	O
51.1	O
cm	O
)	O
height	O
x	O
8.1	B-Device
in	O
(	O
20.6	O
cm	O
)	O
width	O
x	O
18.7	O
in	O
(	O
47.5	O
cm	O
)	O
depth	O
Weight	O
42.4	O
lb	O
(	O
19.2	O
kg	O
)	O
39.9	O
lb	O
(	O
18.1	O
kg	O
)	O
(	O
quad-core	B-Architecture
)	O
41.2	O
lb	O
(	O
18.7	O
kg	O
)	O
(	O
8-core	B-Architecture
)	O
Operating	B-Application
system	I-Application
Minimum	O
Mac	B-Application
OS	I-Application
X	I-Application
10.4	I-Application
Tiger	I-Application
Mac	B-Application
OS	I-Application
X	I-Application
10.5	I-Application
Leopard	I-Application
Mac	B-Device
OS	I-Device
X	I-Device
10.6	I-Device
Snow	I-Device
Leopard	I-Device
Mac	B-Application
OS	I-Application
X	I-Application
10.7	I-Application
Lion	I-Application
Latest	O
release	O
Mac	B-Application
OS	I-Application
X	I-Application
10.7	I-Application
Lion	I-Application
OS	B-Operating_System
X	I-Operating_System
10.11	I-Operating_System
El	I-Operating_System
Capitan	I-Operating_System
macOS	O
10.13	O
High	O
Sierra.Apple	O
introduces	O
macOS	B-Device
Mojave	I-Device
.	O
</s>
<s>
Ars	O
Technica	O
reviewed	O
the	O
2006	O
Mac	B-Device
Pro	I-Device
,	O
calling	O
it	O
a	O
solid	O
"	O
multiplatform	O
device	O
"	O
and	O
rating	O
it	O
9	O
out	O
of	O
10	B-Operating_System
.	O
</s>
<s>
They	O
gave	O
it	O
an	O
8	O
out	O
of	O
10	B-Operating_System
.	O
</s>
<s>
Architosh	O
,	O
an	O
online	O
architectural	O
design	O
magazine	O
focused	O
on	O
mac	B-Device
technology	O
,	O
would	O
have	O
scored	O
it	O
a	O
perfect	O
five	O
except	O
for	O
a	O
few	O
issues	O
with	O
software	O
compatibility	O
and	O
the	O
high	O
price	O
for	O
FB-DIMM	B-General_Concept
memory	B-Architecture
.	O
</s>
<s>
Apple	O
Senior	O
Vice	O
President	O
of	O
Marketing	O
Phil	O
Schiller	O
presented	O
a	O
"	O
sneak	O
peek	O
"	O
of	O
the	O
completely	O
redesigned	O
Mac	B-Device
Pro	I-Device
during	O
the	O
2013	O
Worldwide	O
Developers	O
Conference	O
keynote	O
.	O
</s>
<s>
The	O
video	O
revealed	O
an	O
overhauled	O
case	B-General_Concept
design	O
,	O
a	O
polished	O
reflective	O
aluminum	O
cylinder	O
built	O
around	O
a	O
central	O
thermal	O
dissipation	O
core	O
and	O
vented	O
by	O
a	O
single	O
fan	O
,	O
which	O
pulls	O
air	O
from	O
under	O
the	O
case	B-General_Concept
,	O
through	O
the	O
core	O
,	O
and	O
out	O
the	O
top	O
of	O
the	O
case	B-General_Concept
.	O
</s>
<s>
Apple	O
states	O
that	O
the	O
cylindrical	O
Mac	B-Device
Pro	I-Device
achieves	O
twice	O
the	O
performance	O
of	O
the	O
last	O
model	O
.	O
</s>
<s>
The	O
cylindrical	O
thermal	O
core	O
was	O
unable	O
to	O
adapt	O
to	O
changing	O
hardware	O
trends	O
and	O
left	O
the	O
Mac	B-Device
Pro	I-Device
without	O
updates	O
for	O
over	O
three	O
years	O
,	O
leading	O
Apple	O
to	O
make	O
a	O
rare	O
admission	O
of	O
a	O
product	O
's	O
failure	O
in	O
April	O
2017	O
when	O
it	O
detailed	O
the	O
issues	O
surrounding	O
the	O
design	O
and	O
promised	O
a	O
totally	O
redesigned	O
Mac	B-Device
Pro	I-Device
.	O
</s>
<s>
The	O
design	O
of	O
the	O
cylindrical	O
Mac	B-Device
Pro	I-Device
has	O
received	O
mixed	O
reviews	O
,	O
which	O
has	O
been	O
described	O
as	O
appearing	O
like	O
a	O
"	O
small	O
black	O
trash	O
can	O
"	O
,	O
rice	O
cooker	O
,	O
or	O
R2-D2	O
or	O
Darth	O
Vader	O
's	O
helmet	O
.	O
</s>
<s>
On	O
September	O
18	O
,	O
2018	O
,	O
the	O
Mac	B-Device
Pro	I-Device
surpassed	O
the	O
Macintosh	B-Device
Plus	I-Device
's	O
production	O
life	O
record	O
for	O
an	O
unchanged	O
Mac	B-Device
model	O
,	O
with	O
the	O
Plus	O
having	O
remained	O
on	O
sale	O
unchanged	O
for	O
1,734	O
days	O
.	O
</s>
<s>
It	O
was	O
discontinued	O
on	O
December	O
10	B-Operating_System
,	O
2019	O
,	O
after	O
being	O
on	O
sale	O
unchanged	O
for	O
a	O
record	O
2,182	O
days	O
.	O
</s>
<s>
The	O
redesigned	O
Mac	B-Device
Pro	I-Device
takes	O
up	O
less	O
than	O
one-eighth	O
the	O
volume	O
of	O
the	O
immediately	O
previous	O
model	O
,	O
being	O
shorter	O
at	O
,	O
thinner	O
at	O
and	O
lighter	O
at	O
.	O
</s>
<s>
It	O
supports	O
one	O
central	B-General_Concept
processing	I-General_Concept
unit	I-General_Concept
(	O
CPU	B-Device
)	O
(	O
up	O
to	O
a	O
12-core	B-Architecture
Xeon	B-Device
E5	O
CPU	B-Device
)	O
,	O
four	O
1866MHz	O
DDR3	O
slots	O
,	O
dual	O
AMD	B-Application
FirePro	I-Application
D	O
series	O
GPUs	B-Architecture
(	O
up	O
to	O
D700	O
with	O
6GB	O
VRAM	O
each	O
)	O
,	O
and	O
PCIe-based	O
flash	O
storage	O
.	O
</s>
<s>
There	O
is	O
a	O
3×	O
MIMO	O
antenna	O
system	O
for	O
the	O
unit	O
's	O
802.11ac	O
WiFi	O
networking	B-Architecture
interface	O
,	O
Bluetooth	B-Protocol
4.0	O
to	O
facilitate	O
close-range	O
wireless	O
functions	O
such	O
as	O
music	O
transfer	O
,	O
keyboards	O
,	O
mice	O
,	O
tablets	O
,	O
speakers	O
,	O
security	O
,	O
cameras	O
,	O
and	O
printers	O
.	O
</s>
<s>
The	O
system	O
can	O
simultaneously	O
support	O
six	O
Apple	B-Device
Thunderbolt	I-Device
Displays	I-Device
,	O
or	O
three	O
4K	B-Architecture
resolution	I-Architecture
computer	B-Device
monitors	I-Device
.	O
</s>
<s>
The	O
cylindrical	O
Mac	B-Device
Pro	I-Device
has	O
a	O
redesigned	O
configuration	O
of	O
ports	B-Protocol
.	O
</s>
<s>
It	O
has	O
a	O
HDMI	B-Protocol
1.4	O
port	O
,	O
dual	O
Gigabit	O
Ethernet	O
ports	B-Protocol
,	O
six	O
Thunderbolt	B-Protocol
2	I-Protocol
ports	B-Protocol
,	O
four	O
USB	B-Protocol
3	O
ports	B-Protocol
,	O
and	O
combined	O
digital	O
Mini-TOSlink	B-Protocol
optical	O
/	O
analog	O
3.5mm	O
stereo	O
mini	B-Device
jack	I-Device
for	O
audio	O
output	O
.	O
</s>
<s>
It	O
also	O
has	O
a	O
headphones	O
mini	B-Device
jack	I-Device
(	O
the	O
two	O
are	O
distinctly	O
selectable	O
within	O
the	O
Sound	O
System	O
Preference	O
panel	O
,	O
Output	O
tab	O
)	O
.	O
</s>
<s>
The	O
Thunderbolt	B-Protocol
2	I-Protocol
ports	B-Protocol
support	O
up	O
to	O
thirty-six	O
Thunderbolt	B-Protocol
devices	O
(	O
six	O
per	O
port	O
)	O
and	O
can	O
concurrently	O
support	O
up	O
to	O
three	O
4K	B-Architecture
displays	I-Architecture
.	O
</s>
<s>
This	O
design	O
requires	O
two	O
GPUs	B-Architecture
to	O
support	O
the	O
seven	O
display	O
outputs	O
(	O
HDMI	B-Protocol
and	O
six	O
Thunderbolt	B-Protocol
)	O
.	O
</s>
<s>
The	O
I/O	O
panel	O
illuminates	O
itself	O
when	O
the	O
unit	O
senses	O
it	O
has	O
been	O
moved	O
to	O
make	O
it	O
easier	O
for	O
the	O
user	O
to	O
see	O
the	O
ports	B-Protocol
.	O
</s>
<s>
Unlike	O
the	O
previous	O
model	O
,	O
it	O
has	O
no	O
FireWire	B-Protocol
800	O
ports	B-Protocol
,	O
dedicated	O
digital	O
audio	O
in/out	O
ports	B-Protocol
,	O
a	O
SuperDrive	B-Device
,	O
DVI	B-Protocol
port	I-Protocol
,	O
3.5-inch	O
drive	B-Device
bays	I-Device
for	O
replaceable	O
storage	O
drives	O
,	O
or	O
changeable	O
internal	O
PCIe	O
slots	O
.	O
</s>
<s>
Instead	O
,	O
there	O
are	O
six	O
Thunderbolt	B-Protocol
2	I-Protocol
ports	B-Protocol
to	O
connect	O
high-speed	O
external	O
peripherals	O
,	O
including	O
enclosures	O
for	O
internal	O
PCIe	O
cards	O
.	O
</s>
<s>
Apple	O
's	O
website	O
mentions	O
only	O
RAM	B-Architecture
and	O
flash	O
storage	O
as	O
user-serviceable	O
,	O
though	O
third	O
party	O
tear-downs	O
show	O
nearly	O
all	O
components	O
can	O
be	O
removed	O
and	O
replaced	O
.	O
</s>
<s>
Apple	O
has	O
also	O
specified	O
mandatory	O
and	O
recommended	O
tightening	O
torque	O
values	O
for	O
nearly	O
every	O
screw	O
,	O
with	O
the	O
most	O
important	O
being	O
those	O
securing	O
the	O
GPUs	B-Architecture
and	O
CPU	B-Device
riser	B-Architecture
card	I-Architecture
to	O
the	O
thermal	O
core	O
.	O
</s>
<s>
The	O
flash	O
storage	O
and	O
GPUs	B-Architecture
use	O
proprietary	O
connectors	O
and	O
are	O
specially	O
sized	O
to	O
fit	O
into	O
the	O
enclosure	O
.	O
</s>
<s>
The	O
CPU	B-Device
is	O
not	O
soldered	O
to	O
the	O
riser	B-Architecture
card	I-Architecture
and	O
can	O
be	O
replaced	O
with	O
another	O
LGA	B-Device
2011	I-Device
socket	O
processor	B-General_Concept
,	O
including	O
processor	B-General_Concept
options	O
not	O
offered	O
by	O
Apple	O
.	O
</s>
<s>
The	O
type	O
of	O
RAM	B-Architecture
modules	O
that	O
Apple	O
supplies	O
with	O
the	O
late-2013	O
Mac	B-Device
Pro	I-Device
in	O
the	O
default	O
configuration	O
are	O
ECC	B-General_Concept
(	O
UDIMM	B-General_Concept
)	O
on	O
the	O
up	O
to	O
8GB	O
modules	O
(	O
shown	O
on	O
each	O
module	O
as	O
PC3-14900E	O
)	O
.	O
</s>
<s>
Apple	O
offers	O
as	O
an	O
optional	O
upgrade	O
16GB	O
modules	O
are	O
ECC	B-General_Concept
(	O
RDIMM	B-General_Concept
)	O
modules	O
(	O
shown	O
on	O
each	O
module	O
as	O
PC3-14900R	O
)	O
.	O
</s>
<s>
The	O
higher-capacity	O
32GB	O
modules	O
that	O
some	O
third-party	O
vendors	O
offer	O
are	O
also	O
RDIMM	B-General_Concept
.	O
</s>
<s>
The	O
UDIMM	B-General_Concept
and	O
RDIMM	B-General_Concept
module	O
types	O
cannot	O
be	O
mixed	O
.	O
</s>
<s>
Apple	O
's	O
Boot	B-Application
Camp	I-Application
provides	O
BIOS	B-Operating_System
backwards	O
compatibility	O
,	O
allowing	O
dual	O
and	O
triple	O
boot	O
configurations	O
.	O
</s>
<s>
These	O
operating	B-General_Concept
systems	I-General_Concept
are	O
installable	O
on	O
Intel	O
x64-based	O
Apple	O
computers	O
:	O
</s>
<s>
The	O
performance	O
had	O
been	O
widely	O
lauded	O
,	O
especially	O
handling	O
video	O
tasks	O
on	O
the	O
dual	O
GPU	B-Architecture
units	O
,	O
with	O
some	O
reviewers	O
noting	O
the	O
ability	O
to	O
apply	O
dozens	O
of	O
filters	O
to	O
realtime	O
4K	B-Architecture
resolution	I-Architecture
video	O
in	O
Final	B-Application
Cut	I-Application
Pro	I-Application
X	I-Application
.	O
</s>
<s>
Technical	O
reviewers	O
praised	O
the	O
OpenCL	B-Application
API	O
under	O
which	O
the	O
machine	O
's	O
powerful	O
twin	O
GPUs	B-Architecture
and	O
its	O
multi-core	B-Architecture
CPU	I-Architecture
can	O
be	O
treated	O
as	O
a	O
single	O
pool	O
of	O
computing	O
power	O
.	O
</s>
<s>
However	O
,	O
in	O
late	O
2013	O
through	O
early	O
2014	O
,	O
some	O
reviewers	O
had	O
noted	O
the	O
lack	O
of	O
internal	O
expandability	O
,	O
second	O
CPU	B-Device
,	O
serviceability	O
,	O
and	O
questioned	O
the	O
then-limited	O
offerings	O
via	O
Thunderbolt	B-Protocol
2	I-Protocol
ports	B-Protocol
.	O
</s>
<s>
By	O
2016	O
,	O
reviewers	O
started	O
to	O
agree	O
that	O
the	O
Mac	B-Device
Pro	I-Device
was	O
now	O
lacking	O
in	O
functionality	O
and	O
power	O
,	O
it	O
having	O
not	O
been	O
updated	O
since	O
2013	O
,	O
and	O
it	O
was	O
past	O
time	O
for	O
Apple	O
to	O
update	O
it	O
.	O
</s>
<s>
Apple	O
later	O
revealed	O
in	O
2017	O
that	O
the	O
thermal	O
core	O
design	O
had	O
limited	O
the	O
ability	O
to	O
upgrade	O
the	O
Mac	B-Device
Pro	I-Device
's	O
GPUs	B-Architecture
and	O
that	O
a	O
new	O
design	O
was	O
under	O
development	O
,	O
to	O
be	O
released	O
sometime	O
after	O
2017	O
.	O
</s>
<s>
On	O
February	O
5	O
,	O
2016	O
,	O
Apple	O
identified	O
problems	O
with	O
FirePro	O
D500	O
and	O
D700	O
GPUs	B-Architecture
manufactured	O
between	O
February	O
8	O
,	O
2015	O
and	O
April	O
11	O
,	O
2015	O
.	O
</s>
<s>
Customers	O
who	O
owned	O
a	O
Mac	B-Device
Pro	I-Device
exhibiting	O
those	O
issues	O
could	O
take	O
their	O
affected	O
machine	O
to	O
Apple	O
or	O
an	O
authorized	O
service	O
provider	O
to	O
have	O
both	O
GPUs	B-Architecture
replaced	O
for	O
free	O
.	O
</s>
<s>
Customers	O
who	O
owned	O
Mac	B-Device
Pros	I-Device
with	O
FirePro	O
D300	O
GPUs	B-Architecture
also	O
complained	O
about	O
problems	O
,	O
but	O
those	O
GPUs	B-Architecture
were	O
not	O
included	O
in	O
the	O
repair	O
program	O
until	O
July	O
2018	O
.	O
</s>
<s>
Customers	O
with	O
FirePro	O
GPUs	B-Architecture
not	O
manufactured	O
between	O
those	O
dates	O
have	O
complained	O
of	O
issues	O
including	O
overheating	O
and	O
thermal	O
throttling	O
.	O
</s>
<s>
Users	O
have	O
had	O
to	O
resort	O
to	O
using	O
third-party	O
apps	O
to	O
manually	O
increase	O
the	O
fan	O
speed	O
to	O
prevent	O
the	O
GPUs	B-Architecture
from	O
overheating	O
.	O
</s>
<s>
In	O
April	O
2018	O
,	O
Apple	O
confirmed	O
that	O
a	O
redesigned	O
Mac	B-Device
Pro	I-Device
would	O
be	O
released	O
in	O
2019	O
to	O
replace	O
the	O
2013	O
model	O
.	O
</s>
<s>
Apple	O
announced	O
this	O
new	O
Mac	B-Device
Pro	I-Device
on	O
June	O
3	O
,	O
2019	O
at	O
the	O
World	O
Wide	O
Developers	O
Conference	O
.	O
</s>
<s>
It	O
returns	O
to	O
a	O
tower	B-General_Concept
design	O
similar	O
to	O
the	O
Power	B-Device
Mac	I-Device
G5	I-Device
in	O
2003	O
and	O
the	O
first-generation	O
model	O
in	O
2006	O
.	O
</s>
<s>
The	O
design	O
also	O
includes	O
a	O
new	O
thermal	O
architecture	B-General_Concept
with	O
three	O
impeller	O
fans	O
,	O
which	O
promises	O
to	O
prevent	O
the	O
computer	O
from	O
having	O
to	O
throttle	O
the	O
processor	B-General_Concept
so	O
that	O
it	O
can	O
always	O
run	O
at	O
its	O
peak	O
performance	O
level	O
.	O
</s>
<s>
The	O
RAM	B-Architecture
is	O
expandable	O
to	O
1.5TB	O
using	O
twelve	O
128GB	O
DIMMs	B-General_Concept
.	O
</s>
<s>
It	O
can	O
be	O
configured	O
with	O
up	O
to	O
two	O
AMD	B-Device
Radeon	I-Device
Pro	O
GPUs	B-Architecture
,	O
based	O
on	O
RDNA	O
architecture	B-General_Concept
,	O
which	O
come	O
in	O
a	O
custom	O
MPX	O
module	O
,	O
which	O
are	O
fanless	O
and	O
use	O
the	O
chassis	O
's	O
cooling	O
system	O
.	O
</s>
<s>
Apple	O
's	O
Afterburner	O
card	O
is	O
a	O
custom	O
add-on	O
,	O
which	O
adds	O
hardware	O
acceleration	O
for	O
ProRes	B-Algorithm
codecs	B-General_Concept
.	O
</s>
<s>
Similar	O
to	O
the	O
second	O
generation	O
,	O
the	O
cover	O
can	O
be	O
removed	O
to	O
access	O
the	O
internals	O
,	O
which	O
features	O
eight	O
PCIe	O
slots	O
for	O
expansion	O
,	O
making	O
this	O
the	O
first	O
Mac	B-Device
with	O
six	O
or	O
more	O
expansion	B-Device
slots	I-Device
since	O
the	O
Power	B-Device
Macintosh	I-Device
9600	I-Device
in	O
1997	O
.	O
</s>
<s>
It	O
can	O
also	O
be	O
purchased	O
with	O
wheels	O
and	O
in	O
a	O
rack	B-Application
mount	I-Application
configuration	O
.	O
</s>
<s>
It	O
was	O
announced	O
alongside	O
the	O
Pro	B-Device
Display	I-Device
XDR	I-Device
,	O
a	O
6K	O
display	O
with	O
the	O
same	O
finish	O
and	O
lattice	O
pattern	O
.	O
</s>
<s>
The	O
2019	O
Mac	B-Device
Pro	I-Device
is	O
capable	O
of	O
Lights	B-Application
Out	I-Application
Management	I-Application
.	O
</s>
<s>
It	O
is	O
also	O
the	O
first	O
Macintosh	B-Device
computer	I-Device
to	O
feature	O
10	B-Operating_System
Gigabit	O
Ethernet	O
ports	B-Protocol
equipped	O
as	O
standard	O
in	O
all	O
configurations	O
.	O
</s>
<s>
After	O
initial	O
reports	O
that	O
the	O
Mac	B-Device
Pro	I-Device
would	O
be	O
assembled	O
in	O
China	O
,	O
Apple	O
confirmed	O
in	O
September	O
2019	O
it	O
would	O
be	O
assembled	O
in	O
Austin	O
,	O
Texas	O
,	O
at	O
the	O
same	O
facility	O
as	O
the	O
previous-generation	O
Mac	B-Device
Pro	I-Device
,	O
making	O
it	O
the	O
sole	O
Apple	O
product	O
assembled	O
in	O
the	O
United	O
States	O
.	O
</s>
<s>
Trump	O
toured	O
the	O
Mac	B-Device
Pro	I-Device
assembly	O
line	O
in	O
November	O
2019	O
.	O
</s>
<s>
Radeon	B-Device
Pro	O
W5700X	O
and	O
W5500X	O
graphics	B-Device
cards	I-Device
were	O
added	O
as	O
options	O
in	O
April	O
and	O
July	O
2020	O
,	O
respectively	O
.	O
</s>
<s>
In	O
August	O
2021	O
,	O
options	O
for	O
RDNA	O
2	O
–	O
based	O
Radeon	B-Device
Pro	O
cards	O
(	O
W6800X	O
,	O
W6800X	O
Duo	O
and	O
W6900X	O
)	O
were	O
added	O
.	O
</s>
<s>
In	O
March	O
2022	O
,	O
Apple	O
upgraded	O
the	O
base	O
model	O
configuration	O
with	O
the	O
Radeon	B-Device
Pro	O
W5500X	O
and	O
512GB	O
SSD	B-Device
,	O
replacing	O
the	O
Radeon	B-Device
Pro	O
580X	O
graphics	O
and	O
256GB	O
SSD	B-Device
previously	O
offered	O
.	O
</s>
<s>
The	O
2019	O
Mac	B-Device
Pro	I-Device
returns	O
to	O
a	O
tower	B-General_Concept
form	O
factor	O
and	O
features	O
a	O
prominent	O
lattice	O
pattern	O
on	O
its	O
front	O
and	O
rear	O
.	O
</s>
<s>
The	O
lattice	O
design	O
was	O
purportedly	O
originally	O
developed	O
by	O
Jony	O
Ive	O
for	O
the	O
Power	B-Device
Mac	I-Device
G4	I-Device
Cube	I-Device
in	O
2000	O
.	O
</s>
<s>
It	O
comes	O
bundled	O
with	O
a	O
new	O
Magic	B-Device
Keyboard	I-Device
with	O
black	O
keys	O
in	O
a	O
silver	O
chassis	O
,	O
and	O
a	O
black	O
Magic	B-Device
Mouse	I-Device
2	I-Device
or	O
Magic	B-Device
Trackpad	I-Device
2	I-Device
with	O
a	O
silver	O
underside	O
.	O
</s>
<s>
The	O
only	O
pre-release	O
review	O
models	O
of	O
the	O
Mac	B-Device
Pro	I-Device
and	O
Pro	B-Device
Display	I-Device
XDR	I-Device
were	O
provided	O
to	O
YouTube	B-General_Concept
tech	O
vloggers	O
Justine	O
Ezarik	O
,	O
Marques	O
Brownlee	O
,	O
and	O
Jonathan	O
Morrison	O
,	O
rather	O
than	O
reviewers	O
from	O
traditional	O
news	O
outlets	O
.	O
</s>
<s>
iFixit	O
gave	O
it	O
a	O
repairability	O
score	O
of	O
9/10	O
,	O
noting	O
that	O
every	O
part	O
of	O
the	O
machine	O
is	O
user-replaceable	O
.	O
</s>
<s>
The	O
SSD	B-Device
can	O
also	O
be	O
replaced	O
via	O
Apple	O
official	O
parts	O
,	O
but	O
require	O
an	O
Apple	B-Operating_System
Configurator	I-Operating_System
restore	O
to	O
re-pair	O
it	O
with	O
the	O
T2	O
chip	O
.	O
</s>
<s>
Model2019	O
Component	O
Intel	O
Cascade	O
Lake-based	O
Xeon	B-Device
W	O
Timetable	O
Released	O
December	O
10	B-Operating_System
,	O
2019	O
Discontinued	O
Still	O
in	O
production	O
Unsupported	O
Still	O
supported	O
Models	O
Model	O
numbers	O
A1991	O
(	O
Desktop	O
)	O
,	O
A2304	O
(	O
Rack	B-Application
Mount	I-Application
)	O
Model	O
identifier	O
MacPro7	O
,	O
1	O
Apple	O
order	O
number	O
All	O
models	O
are	O
build-to-order	O
ROM	O
EFI	B-Architecture
mode	O
EFI64	O
Kernel	B-Operating_System
mode	O
64-bit	B-Device
Chipset	B-Device
Intel	O
C621	O
Processor	B-General_Concept
3.5	O
GHz	O
8-core	B-Architecture
Intel	B-Device
Xeon	I-Device
W-3223	O
(	O
"	O
Cascade	B-Device
Lake	I-Device
"	O
)	O
with	O
24.5	O
MB	O
cache	O
3.3	O
GHz	O
12-core	B-Architecture
Xeon	B-Device
W-3235	O
(	O
"	O
Cascade	B-Device
Lake	I-Device
"	O
)	O
with	O
31.2	O
MB	O
cache	O
3.2	O
GHz	O
16-core	B-Architecture
Xeon	B-Device
W-3245	O
(	O
"	O
Cascade	B-Device
Lake	I-Device
"	O
)	O
with	O
38	O
MB	O
cache	O
2.7	O
GHz	O
24-core	B-Architecture
Xeon	B-Device
W-3265M	O
(	O
"	O
Cascade	B-Device
Lake	I-Device
"	O
)	O
with	O
57	O
MB	O
cache	O
2.5	O
GHz	O
28-core	B-Architecture
Xeon	B-Device
W-3275M	O
(	O
"	O
Cascade	B-Device
Lake	I-Device
"	O
)	O
with	O
66.5	O
MB	O
cache	O
Memory	B-Architecture
Standard	O
32	O
GB	O
(	O
four	O
8	O
GB	O
)	O
32	O
GB	O
(	O
four	O
8	O
GB	O
)	O
Type	O
DDR4	O
ECC	B-General_Concept
at	O
2933	O
MHz	O
included	O
,	O
but	O
runs	O
at	O
2666	O
MHz	O
DDR4	O
ECC	B-General_Concept
at	O
2933	O
MHz	O
Graphics	O
AMD	B-Device
Radeon	I-Device
Pro	O
W5500X	O
with	O
8	O
GB	O
of	O
GDDR6	O
memory	B-Architecture
(	O
Available	O
July	O
2020	O
,	O
standard	O
since	O
March	O
2022	O
)	O
Secondary	O
storage	O
Standard	O
512	O
GB	O
flash	O
storage	O
Type	O
PCIe	O
SSD	B-Device
,	O
up	O
to	O
two	O
modules	O
,	O
without	O
hot-swapping	O
feature	O
Security	O
Chip	O
Apple	O
T2	O
Connectivity	O
Wi-Fi	O
Built-in	O
Wi-Fi	O
5	O
(	O
802.11a/b/g/n/ac	O
)	O
,	O
up	O
to	O
1.3Gbit/s	O
Ethernet	O
2×	O
10	B-Operating_System
Gigabit	O
Ethernet	O
with	O
Lights	B-Application
Out	I-Application
Management	I-Application
Bluetooth	B-Protocol
Bluetooth	B-Protocol
5.0	O
Peripherals	O
Thunderbolt	B-Protocol
3	I-Protocol
(	O
USB-C	O
3.1	O
Gen	O
2	O
)	O
supporting	O
DisplayPort2×	O
top	O
of	O
case	B-General_Concept
,	O
2×	O
rear	O
I/O	B-Device
card	I-Device
(	O
all	O
models	O
)	O
Additional	O
4×	O
rear	O
(	O
single	O
W5700X	O
,	O
Vega	O
II/Vega	O
II	O
Duo	O
)	O
or	O
8×	O
rear	O
(	O
dual	O
W5700X	O
,	O
Vega	O
II/Vega	O
II	O
Duo	O
)	O
USB	B-Protocol
3.0	O
Type-A	O
,	O
2×	O
rear	O
,	O
1×	O
inside	O
caseApple	O
's	O
new	O
Mac	B-Device
Pro	I-Device
internal	O
components	O
–	O
answers	O
and	O
lingering	O
questions	O
.	O
</s>
<s>
HDMI	B-Protocol
2.02	O
×	O
(	O
580X	O
,	O
W5500X	O
,	O
dual	O
W5700X	O
,	O
Vega	O
II/Vega	O
II	O
Duo	O
)	O
1×	O
(	O
single	O
W5700X	O
,	O
Vega	O
II/Vega	O
II	O
Duo	O
)	O
2×	O
SATA	O
ports	B-Protocol
inside	O
case	B-General_Concept
Display	O
support	O
Six	O
4K	B-Architecture
displays	I-Architecture
,	O
two	O
5K	O
displays	O
,	O
or	O
two	O
Pro	B-Device
Display	I-Device
XDRs	I-Device
(	O
580X	O
)	O
Four	O
4K	B-Architecture
displays	I-Architecture
,	O
one	O
5K	O
displays	O
,	O
or	O
one	O
Pro	B-Device
Display	I-Device
XDRs	I-Device
(	O
W5500X	O
)	O
Six	O
4K	B-Architecture
displays	I-Architecture
,	O
three	O
5K	O
displays	O
,	O
or	O
three	O
Pro	B-Device
Display	I-Device
XDRs	I-Device
(	O
W5700X	O
)	O
Six	O
4K	B-Architecture
displays	I-Architecture
,	O
three	O
5K	O
displays	O
,	O
or	O
two	O
Pro	B-Device
Display	I-Device
XDRs	I-Device
(	O
Vega	O
II	O
)	O
Eight	O
4K	B-Architecture
displays	I-Architecture
,	O
four	O
5K	O
displays	O
,	O
or	O
four	O
Pro	B-Device
Display	I-Device
XDRs	I-Device
(	O
single	O
Vega	O
II	O
Duo	O
)	O
Twelve	O
4K	B-Architecture
displays	I-Architecture
or	O
six	O
Pro	B-Device
Display	I-Device
XDRs	I-Device
(	O
dual	O
Vega	O
II	O
Duo	O
)	O
Audio	O
3.5	O
mm	O
headphone	B-Device
jack	I-Device
,	O
Built-in	O
mono	O
speaker	O
Dimensions	O
20.8	O
in	O
(	O
52.9	O
cm	O
)	O
height	O
x	O
8.6	O
in	O
(	O
21.8	O
cm	O
)	O
width	O
x	O
17.7	O
in	O
(	O
45	O
cm	O
)	O
depth8.67	O
in	O
(	O
22.0	O
cm	O
)	O
or	O
5U	O
height	O
x	O
19.0	B-Application
in	I-Application
(	O
48.2	O
cm	O
)	O
width	O
x	O
21.2	O
in	O
(	O
54	O
cm	O
)	O
depth	O
.	O
</s>
<s>
At	O
an	O
Apple	O
media	O
event	O
on	O
March	O
8	O
,	O
2022	O
,	O
senior	O
vice	O
president	O
of	O
hardware	O
engineering	O
John	O
Ternus	O
stated	O
that	O
an	O
Apple	B-Device
silicon	I-Device
Mac	B-Device
Pro	I-Device
is	O
being	O
developed	O
that	O
will	O
complete	O
the	O
line-up	O
of	O
Apple	B-Device
silicon	I-Device
Macs	B-Device
.	O
</s>
<s>
On	O
November	O
5	O
,	O
2010	O
,	O
Apple	O
introduced	O
the	O
Mac	B-Device
Pro	I-Device
Server	B-Application
,	O
which	O
officially	O
replaced	O
the	O
Xserve	B-Device
line	O
of	O
Apple	O
servers	B-Application
as	O
of	O
January	O
31	O
,	O
2011	O
.	O
</s>
<s>
The	O
Mac	B-Device
Pro	I-Device
Server	B-Application
includes	O
an	O
unlimited	O
Mac	B-Operating_System
OS	I-Operating_System
X	I-Operating_System
Server	I-Operating_System
license	O
and	O
an	O
Intel	B-Device
Xeon	I-Device
2.8GHz	O
quad-core	B-Architecture
processor	I-Architecture
,	O
with	O
8GB	O
of	O
DDR3	O
RAM	B-Architecture
.	O
</s>
<s>
In	O
mid-2012	O
,	O
the	O
Mac	B-Device
Pro	I-Device
Server	B-Application
was	O
upgraded	O
to	O
an	O
Intel	B-Device
Xeon	I-Device
3.2GHz	O
quad-core	B-Architecture
processor	I-Architecture
.	O
</s>
<s>
The	O
Mac	B-Device
Pro	I-Device
Server	B-Application
was	O
discontinued	O
on	O
October	O
22	O
,	O
2013	O
,	O
with	O
the	O
introduction	O
of	O
the	O
cylindrical	O
Mac	B-Device
Pro	I-Device
.	O
</s>
<s>
However	O
,	O
the	O
OS	B-Operating_System
X	I-Operating_System
Server	I-Operating_System
software	O
package	O
can	O
be	O
purchased	O
from	O
the	O
Mac	B-Device
App	O
Store	O
.	O
</s>
<s>
The	O
redesigned	O
Mac	B-Device
Pro	I-Device
released	O
on	O
December	O
10	B-Operating_System
,	O
2019	O
has	O
a	O
rack-mount	B-Application
version	O
,	O
available	O
in	O
the	O
same	O
configurations	O
as	O
the	O
standard	O
Mac	B-Device
Pro	I-Device
for	O
a	O
$500	O
premium	O
.	O
</s>
<s>
The	O
Mac	B-Device
Pro	I-Device
Rack	O
comes	O
with	O
mounting	O
rails	O
to	O
mount	O
it	O
in	O
a	O
server	B-Application
rack	I-Application
,	O
and	O
fits	O
in	O
a	O
5	O
Rack	O
Unit	O
(	O
or	O
"	O
U	O
"	O
)	O
space	O
.	O
</s>
