<s>
The	O
Apple	B-Protocol
Display	I-Protocol
Connector	I-Protocol
(	O
ADC	O
)	O
is	O
a	O
proprietary	O
modification	O
of	O
the	O
DVI	B-Protocol
connector	I-Protocol
that	O
combines	O
analog	O
and	O
digital	O
video	O
signals	O
,	O
USB	B-Protocol
,	O
and	O
power	O
all	O
in	O
one	O
cable	O
.	O
</s>
<s>
It	O
was	O
used	O
in	O
later	O
versions	O
of	O
the	O
Apple	B-Device
Studio	I-Device
Display	I-Device
,	O
including	O
the	O
final	O
17	O
"	O
CRT	B-Device
model	O
,	O
and	O
most	O
versions	O
of	O
the	O
widescreen	O
Apple	B-Device
Cinema	I-Device
Display	I-Device
,	O
after	O
which	O
Apple	O
adopted	O
standard	O
DVI	B-Protocol
connectors	I-Protocol
on	O
later	O
models	O
.	O
</s>
<s>
First	O
implemented	O
in	O
the	O
July	O
2000	O
Power	B-Device
Mac	I-Device
G4	I-Device
and	O
G4	B-Device
Cube	I-Device
,	O
ADC	O
disappeared	O
from	O
displays	O
in	O
June	O
2004	O
when	O
Apple	O
introduced	O
the	O
aluminum-clad	O
20	O
"	O
(	O
51	O
cm	O
)	O
,	O
23	O
"	O
(	O
58	O
cm	O
)	O
,	O
and	O
30	O
"	O
(	O
76	O
cm	O
)	O
Apple	B-Device
Cinema	I-Device
Displays	I-Device
,	O
which	O
feature	O
separate	O
DVI	B-Protocol
,	O
USB	B-Protocol
and	O
FireWire	B-Protocol
connectors	O
,	O
and	O
their	O
own	O
power	O
supplies	O
.	O
</s>
<s>
An	O
ADC	O
port	O
was	O
still	O
included	O
with	O
the	O
Power	B-Device
Mac	I-Device
G5	I-Device
until	O
April	O
2005	O
,	O
when	O
new	O
models	O
meant	O
the	O
only	O
remaining	O
Apple	O
product	O
with	O
an	O
ADC	O
interface	O
was	O
the	O
single	O
processor	O
Power	B-Device
Mac	I-Device
G5	I-Device
introduced	O
in	O
October	O
2004	O
.	O
</s>
<s>
This	O
single	O
processor	O
Power	B-Device
Mac	I-Device
G5	I-Device
was	O
discontinued	O
soon	O
after	O
in	O
June	O
2005	O
.	O
</s>
<s>
The	O
Apple	B-Protocol
Display	I-Protocol
Connector	I-Protocol
is	O
physically	O
incompatible	O
with	O
a	O
standard	O
DVI	B-Protocol
connector	I-Protocol
.	O
</s>
<s>
The	O
Apple	O
DVI	B-Protocol
to	O
ADC	O
Adapter	O
,	O
which	O
cost	O
$149US	O
at	O
launch	O
but	O
was	O
in	O
2002	O
available	O
for	O
$99US	O
,	O
takes	O
USB	B-Protocol
and	O
DVI	B-Protocol
connections	O
from	O
the	O
computer	O
,	O
adds	O
power	O
from	O
its	O
own	O
integrated	O
power	O
supply	O
,	O
and	O
combines	O
them	O
into	O
an	O
ADC	O
output	O
,	O
allowing	O
ADC	O
monitors	O
to	O
be	O
used	O
with	O
DVI-based	O
machines	O
.	O
</s>
<s>
On	O
some	O
models	O
of	O
Power	B-Device
Mac	I-Device
G4	I-Device
the	O
ADC	O
connector	O
replaced	O
the	O
DVI	B-Protocol
connector	I-Protocol
.	O
</s>
<s>
This	O
change	O
necessitated	O
a	O
passive	O
ADC	O
to	O
DVI	B-Protocol
adapter	O
to	O
use	O
a	O
DVI	B-Protocol
monitor	O
.	O
</s>
<s>
The	O
ADC	O
carries	O
up	O
to	O
100	O
W	O
of	O
power	O
,	O
an	O
insufficient	O
amount	O
to	O
run	O
most	O
19-inch	O
(	O
48	O
cm	O
)	O
or	O
bigger	O
CRTs	O
widely	O
available	O
during	O
ADC	O
's	O
debut	O
,	O
nor	O
can	O
it	O
run	O
contemporary	O
flat	O
panels	O
marketed	O
for	O
home	O
entertainment	O
(	O
many	O
of	O
which	O
support	O
DVI	B-Protocol
or	O
VGA	O
connections	O
)	O
without	O
an	O
adapter	O
.	O
</s>
<s>
The	O
power	O
limit	O
was	O
an	O
important	O
factor	O
for	O
Apple	O
to	O
abandon	O
ADC	O
when	O
it	O
launched	O
the	O
30-inch	O
(	O
76	O
cm	O
)	O
Apple	B-Device
Cinema	I-Device
HD	I-Device
Display	I-Device
.	O
</s>
<s>
On	O
newer	O
DVI-based	O
displays	O
lacking	O
ADC	O
,	O
Apple	O
still	O
opted	O
for	O
a	O
single	O
"	O
ganged	O
cable	O
"	O
that	O
connects	O
the	O
separate	O
signal	O
cables	O
to	O
each	O
other	O
so	O
they	O
cannot	O
tangle	O
.	O
</s>
<s>
Such	O
cables	O
,	O
however	O
,	O
employ	O
standard	O
DVI	B-Protocol
,	O
power	O
,	O
USB	B-Protocol
and	O
FireWire	B-Protocol
connectors	O
,	O
avoiding	O
drawbacks	O
to	O
ADC	O
.	O
</s>
<s>
Beginning	O
in	O
2008	O
,	O
Apple	O
began	O
transitioning	O
away	O
from	O
DVI	B-Protocol
,	O
adopting	O
the	O
increasingly	O
common	O
DisplayPort	B-Protocol
signalling	O
standard	O
,	O
and	O
developed	O
their	O
own	O
Mini	B-Protocol
DisplayPort	I-Protocol
connector	O
beginning	O
with	O
the	O
first	O
LED-backlit	O
Cinema	B-Device
Displays	I-Device
.	O
</s>
<s>
As	O
of	O
2013	O
,	O
Apple	O
no	O
longer	O
uses	O
a	O
DVI-based	O
interface	O
for	O
any	O
of	O
its	O
displays	O
.	O
</s>
<s>
Power	O
is	O
supplied	O
to	O
the	O
ADC	O
port	O
by	O
an	O
additional	O
finger	O
connector	O
on	O
the	O
video	O
card	O
,	O
which	O
plugs	O
into	O
a	O
slot	O
on	O
the	O
motherboard	O
between	O
the	O
AGP	O
slot	O
and	O
the	O
back	O
panel	O
of	O
the	O
computer	O
;	O
on	O
G4	B-Device
Macs	O
,	O
some	O
power	O
is	O
also	O
sent	O
through	O
AGP	O
pins	O
3	O
and	O
11	O
.	O
</s>
<s>
G5	B-Device
Macs	O
draw	O
all	O
power	O
from	O
the	O
finger	O
connector	O
and	O
therefore	O
are	O
8x	O
compatible	O
.	O
</s>
<s>
To	O
use	O
an	O
AGP	O
8x	O
card	O
in	O
a	O
G4	B-Device
,	O
pins	O
3	O
and	O
11	O
must	O
be	O
somehow	O
disabled	O
;	O
this	O
can	O
be	O
done	O
by	O
placing	O
tape	O
over	O
the	O
conductive	O
part	O
of	O
the	O
pin	O
,	O
slicing	O
the	O
PCB	O
traces	O
,	O
or	O
on	O
some	O
cards	O
,	O
desoldering	O
surface	O
mount	O
resistors	O
.	O
</s>
