<s>
The	O
Developer	B-Device
Transition	I-Device
Kit	I-Device
is	O
the	O
name	O
of	O
two	O
prototype	O
Mac	B-Device
computers	O
made	O
available	O
to	O
software	O
developers	O
by	O
Apple	O
Inc	O
.	O
</s>
<s>
The	O
first	O
Developer	B-Device
Transition	I-Device
Kit	I-Device
was	O
made	O
available	O
in	O
2005	O
prior	O
to	O
the	O
Mac	B-Device
transition	I-Device
to	I-Device
Intel	I-Device
processors	I-Device
to	O
aid	O
in	O
the	O
Mac	B-Device
's	O
transition	B-Device
from	O
PowerPC	B-Architecture
to	O
an	O
Intel-based	O
x86-64	B-Device
architecture	I-Device
.	O
</s>
<s>
A	O
second	O
Developer	B-Device
Transition	I-Device
Kit	I-Device
was	O
made	O
available	O
in	O
2020	O
prior	O
to	O
the	O
Mac	B-Device
transition	I-Device
to	I-Device
Apple	I-Device
silicon	I-Device
as	O
part	O
of	O
its	O
initiative	O
to	O
transition	B-Device
the	O
Mac	B-Device
away	O
from	O
Intel	O
to	O
Apple	O
's	O
ARM64-based	O
Apple	B-Device
silicon	I-Device
.	O
</s>
<s>
During	O
Apple	O
's	O
2005	O
–	O
2006	O
transition	B-Device
from	O
PowerPC	B-Architecture
to	O
Intel	O
processors	O
,	O
the	O
company	O
made	O
available	O
the	O
first	O
Developer	B-Device
Transition	I-Device
Kit	I-Device
(	O
DTK	O
)	O
,	O
a	O
prototype	O
Intel-based	O
Mac	B-Device
computer	O
for	O
developers	O
.	O
</s>
<s>
The	O
computer	O
identified	O
itself	O
as	O
"	O
Apple	O
Development	O
Platform	O
"	O
(	O
ADP2	O
,	O
1	O
)	O
,	O
and	O
consisted	O
of	O
a	O
3.6	O
GHz	O
Intel	B-General_Concept
Pentium	I-General_Concept
4	I-General_Concept
processor	B-General_Concept
,	O
1	O
GB	O
DDR2	O
RAM	B-Architecture
,	O
160	O
GB	O
SATA	O
hard	B-Device
disk	I-Device
drive	I-Device
,	O
and	O
optical	O
disk	O
drive	O
in	O
a	O
Power	B-Device
Mac	I-Device
G5	I-Device
case	O
slightly	O
modified	O
with	O
an	O
altered	O
cooling	O
system	O
.	O
</s>
<s>
Connectivity	O
included	O
USB	B-Protocol
2.0	O
,	O
FireWire	O
400	O
,	O
and	O
Gigabit	O
Ethernet	O
.	O
</s>
<s>
Software	O
included	O
Xcode	B-Operating_System
2.1	O
and	O
a	O
version	O
of	O
Mac	B-Application
OS	I-Application
X	I-Application
10.4.1	I-Application
which	O
runs	O
on	O
Intel	O
's	O
x86	B-Operating_System
architecture	I-Operating_System
.	O
</s>
<s>
Apple	O
required	O
developers	O
to	O
be	O
a	O
Select	O
or	O
Premier	O
Apple	B-Operating_System
Developer	I-Operating_System
Connect	O
(	O
ADC	O
)	O
member	O
,	O
with	O
memberships	O
starting	O
at	O
499	O
per	O
year	O
and	O
additional	O
requirement	O
to	O
pay	O
999	O
to	O
receive	O
an	O
Intel	O
DTK	O
.	O
</s>
<s>
The	O
Intel	O
DTK	O
would	O
be	O
directly	O
succeeded	O
by	O
the	O
first-generation	O
Mac	B-Device
Pro	I-Device
.	O
</s>
<s>
At	O
the	O
2020	O
Worldwide	O
Developers	O
Conference	O
,	O
on	O
June	O
22	O
,	O
2020	O
,	O
Apple	O
announced	O
another	O
Developer	B-Device
Transition	I-Device
Kit	I-Device
(	O
DTK	O
)	O
intended	O
to	O
assist	O
software	O
developers	O
during	O
the	O
transition	B-Device
of	O
the	O
Mac	B-Device
platform	I-Device
to	O
the	O
ARM	B-Architecture
architecture	O
.	O
</s>
<s>
Described	O
informally	O
as	O
"	O
an	O
iPad	B-Device
in	O
a	O
Mac	B-Device
mini	O
’s	O
body	O
,	O
"	O
the	O
DTK	O
carries	O
a	O
model	O
number	O
of	O
A2330	O
and	O
identifies	O
itself	O
as	O
"	O
Apple	O
Development	O
Platform.	O
"	O
</s>
<s>
It	O
consisted	O
of	O
an	O
A12Z	B-Device
processor	B-General_Concept
,	O
16	O
GB	O
RAM	B-Architecture
,	O
512	O
GB	O
SSD	B-Device
,	O
and	O
a	O
variety	O
of	O
common	O
I/O	O
ports	O
(	O
USB-C	O
,	O
USB-A	B-Protocol
,	O
HDMI	B-Protocol
2.0	O
,	O
and	O
Gigabit	O
Ethernet	O
)	O
in	O
a	O
Mac	B-Device
mini	O
case	O
.	O
</s>
<s>
Support	O
for	O
wireless	O
communication	O
based	O
upon	O
Wi-Fi	O
5	O
(	O
802.11ac	O
)	O
and	O
Bluetooth	B-Protocol
5.0	O
was	O
included	O
,	O
while	O
Thunderbolt	O
3	O
support	O
,	O
built-in	O
to	O
every	O
Mac	B-Device
commercially	O
available	O
as	O
of	O
June	O
2020	O
,	O
was	O
not	O
included	O
.	O
</s>
<s>
It	O
eventually	O
appeared	O
in	O
the	O
first	O
three	O
models	O
of	O
Apple	B-Device
silicon	I-Device
Macs	O
,	O
operating	O
in	O
Thunderbolt	O
3/USB4	O
mode	O
.	O
</s>
<s>
The	O
DTK	O
came	O
preloaded	O
with	O
beta	O
versions	O
of	O
macOS	B-Operating_System
11	I-Operating_System
Big	I-Operating_System
Sur	I-Operating_System
.	O
</s>
<s>
The	O
A12Z	B-Device
DTK	O
would	O
be	O
directly	O
succeeded	O
by	O
the	O
2020	O
Mac	B-Device
mini	O
with	O
the	O
M1	B-Device
processor	I-Device
.	O
</s>
<s>
In	O
an	O
interview	O
shortly	O
after	O
the	O
introduction	O
of	O
the	O
DTK	O
,	O
Apple	O
’s	O
SVP	O
of	O
Software	O
Engineering	O
Craig	O
Federighi	O
praised	O
the	O
DTK	O
's	O
performance	O
and	O
contributed	O
to	O
expectations	O
of	O
superlative	O
performance	O
of	O
forthcoming	O
commercial	O
products	O
based	O
upon	O
Apple	B-Device
silicon	I-Device
custom-engineered	O
for	O
the	O
Macintosh	B-Device
platform	O
:	O
“	O
Even	O
that	O
DTK	O
hardware	O
,	O
which	O
is	O
running	O
on	O
an	O
existing	O
iPad	B-Device
chip	O
that	O
we	O
do	O
n’t	O
intend	O
to	O
put	O
in	O
a	O
Mac	B-Device
in	O
the	O
future	O
–	O
it	O
’s	O
just	O
there	O
for	O
the	O
transition	B-Device
–	O
the	O
Mac	B-Device
runs	O
awfully	O
nice	O
on	O
that	O
system	O
.	O
</s>
<s>
To	O
receive	O
a	O
DTK	O
,	O
developers	O
needed	O
to	O
sign	O
up	O
for	O
a	O
one	O
year	O
membership	O
to	O
Apple	O
's	O
Universal	B-Device
App	I-Device
Quick	I-Device
Start	I-Device
Program	I-Device
,	O
at	O
a	O
cost	O
of	O
500	O
.	O
</s>
<s>
The	O
device	O
had	O
to	O
be	O
returned	O
to	O
Apple	O
one	O
year	O
after	O
joining	O
the	O
Universal	B-Device
App	I-Device
Quick	I-Device
Start	I-Device
Program	I-Device
,	O
"	O
or	O
as	O
otherwise	O
earlier	O
requested	O
by	O
Apple	O
"	O
.	O
</s>
<s>
Several	O
conditions	O
of	O
use	O
were	O
attached	O
,	O
including	O
restrictions	O
against	O
disassembling	O
the	O
computer	O
,	O
running	O
unauthorized	O
benchmark	O
tests	O
,	O
or	O
using	O
it	O
for	O
work	O
other	O
than	O
transition-related	O
software	O
development	O
.	O
</s>
<s>
The	O
terms	O
of	O
the	O
Universal	B-Device
App	I-Device
Quick	I-Device
Start	I-Device
Program	I-Device
indicated	O
that	O
the	O
program	O
would	O
run	O
for	O
the	O
duration	O
of	O
one	O
year	O
counted	O
from	O
the	O
moment	O
the	O
developer	O
signed	O
up	O
for	O
it	O
,	O
with	O
an	O
option	O
to	O
terminate	O
it	O
early	O
without	O
reason	O
.	O
</s>
<s>
Apple	O
had	O
earlier	O
communicated	O
that	O
the	O
DTK	O
was	O
meant	O
to	O
prepare	O
for	O
the	O
launch	O
of	O
Macs	O
based	O
on	O
Apple	B-Device
silicon	I-Device
,	O
thereby	O
suggesting	O
that	O
the	O
Program	O
would	O
be	O
available	O
until	O
the	O
new	O
Apple	B-Device
silicon	I-Device
Macs	O
would	O
be	O
available	O
.	O
</s>
<s>
Additionally	O
,	O
Apple	O
indicated	O
in	O
their	O
email	O
that	O
they	O
would	O
provide	O
a	O
discount	O
code	O
for	O
a	O
200	O
discount	O
towards	O
the	O
purchase	O
of	O
a	O
Mac	B-Device
with	O
M1	B-Device
after	O
the	O
DTK	O
was	O
returned	O
.	O
</s>
<s>
Apple	O
wrote	O
in	O
the	O
description	O
of	O
the	O
Program	O
that	O
the	O
"	O
Developer	B-Device
Transition	I-Device
Kit	I-Device
 [ was ] 	O
not	O
fully	O
tested	O
and	O
 [ was ] 	O
to	O
be	O
used	O
only	O
for	O
limited	O
testing	O
and	O
development	O
purposes	O
"	O
and	O
that	O
the	O
DTK	O
"	O
may	O
contain	O
errors	O
that	O
could	O
cause	O
failures	O
or	O
loss	O
of	O
data	O
"	O
.	O
</s>
<s>
Many	O
were	O
also	O
indicating	O
that	O
they	O
were	O
unhappy	O
about	O
the	O
200	O
discount	O
code	O
offered	O
by	O
Apple	O
,	O
comparing	O
it	O
to	O
when	O
Apple	O
unexpectedly	O
offered	O
developers	O
the	O
option	O
to	O
return	O
their	O
Intel	O
DTK	O
earlier	O
than	O
the	O
originally	O
planned	O
date	O
for	O
an	O
iMac	O
during	O
the	B-Device
transition	I-Device
from	I-Device
PowerPC	I-Device
to	I-Device
Intel	I-Device
processors	I-Device
.	O
</s>
<s>
During	O
the	O
last	O
transition	B-Device
,	O
a	O
developer	O
could	O
also	O
choose	O
to	O
keep	O
the	O
DTK	O
for	O
the	O
whole	O
length	O
of	O
the	O
program	O
except	O
that	O
they	O
would	O
not	O
get	O
the	O
iMac	O
.	O
</s>
