<s>
DB13W3	B-Protocol
(	O
13W3	B-Protocol
)	O
is	O
a	O
style	O
of	O
D-subminiature	B-Protocol
connector	I-Protocol
commonly	O
used	O
for	O
analog	O
video	O
interfaces	O
.	O
</s>
<s>
The	O
13	O
refers	O
to	O
the	O
total	O
number	O
of	O
pins	O
,	O
the	O
W	O
refers	O
to	O
workstation	B-Device
and	O
the	O
3	O
refers	O
to	O
the	O
number	O
of	O
high-frequency	O
pins	O
.	O
</s>
<s>
It	O
was	O
used	O
primarily	O
on	O
Sun	O
Microsystems	O
,	O
Silicon	O
Graphics	O
(	O
SGI	O
)	O
and	O
IBM	B-Device
RISC	I-Device
workstations	B-Device
,	O
as	O
well	O
as	O
some	O
displays	O
from	O
Apple	O
Computer	O
,	O
NeXT	O
Computer	O
and	O
Intergraph	O
Corporation	O
.	O
</s>
<s>
The	O
13W3	B-Protocol
connector	I-Protocol
is	O
no	O
longer	O
used	O
with	O
modern	O
displays	O
;	O
it	O
was	O
superseded	O
for	O
use	O
with	O
analog	O
displays	O
by	O
the	O
VGA	B-Protocol
connector	I-Protocol
,	O
and	O
as	O
the	O
display	O
market	O
has	O
moved	O
to	O
digital	O
flat	O
panel	O
displays	O
that	O
has	O
in	O
turn	O
been	O
replaced	O
almost	O
entirely	O
by	O
digital	O
connections	O
(	O
DVI	B-Protocol
,	O
HDMI	B-Protocol
,	O
or	O
DisplayPort	B-Protocol
)	O
.	O
</s>
<s>
A	O
variant	O
of	O
the	O
DB13W3	B-Protocol
connector	O
,	O
with	O
high-current	O
pins	O
instead	O
of	O
the	O
high-frequency	O
pins	O
used	O
for	O
video	O
applications	O
,	O
is	O
also	O
used	O
by	O
some	O
3Com	O
SuperStack	O
Ethernet	B-Protocol
switches	I-Protocol
to	O
carry	O
DC	O
power	O
.	O
</s>
<s>
The	O
13W3	B-Protocol
connector	I-Protocol
can	O
be	O
converted	O
into	O
a	O
standard	O
VGA	B-Protocol
connector	I-Protocol
or	O
DVI-A	B-Protocol
using	O
commonly	O
available	O
cables	O
and	O
adapters	O
.	O
</s>
<s>
This	O
allows	O
multisync	B-General_Concept
monitors	I-General_Concept
,	O
which	O
became	O
prevalent	O
in	O
personal	O
computing	O
in	O
the	O
late	O
1980s	O
,	O
to	O
be	O
used	O
with	O
these	O
workstations	B-Device
as	O
long	O
as	O
they	O
are	O
sync-on-green	O
compatible	O
.	O
</s>
<s>
Likewise	O
,	O
later-generation	O
Sun	O
monitors	O
,	O
which	O
began	O
supporting	O
multisync	B-General_Concept
in	O
1998	O
,	O
can	O
be	O
connected	O
via	O
similar	O
cables	O
to	O
personal	O
computers	O
.	O
</s>
<s>
Even	O
though	O
13W3	B-Protocol
is	O
a	O
standard	O
connector	O
,	O
the	O
sync	O
signals	O
are	O
maintained	O
on	O
different	O
pins	O
based	O
on	O
the	O
display	O
and	O
system	O
.	O
</s>
<s>
The	O
Sun	O
DDC	O
connector	O
was	O
used	O
at	O
least	O
on	O
the	O
UPA	B-Architecture
graphics	O
adapters	O
(	O
Creator	O
3D	O
,	O
Expert	O
3D	O
)	O
and	O
for	O
their	O
corresponding	O
monitors	O
(	O
GD5410	O
,	O
GD5510	O
)	O
.	O
</s>
<s>
Many	O
monitors	O
with	O
13W3	B-Protocol
connectors	I-Protocol
do	O
not	O
support	O
separate	O
sync	O
as	O
supplied	O
on	O
most	O
PC	O
systems	O
.	O
</s>
<s>
Other	O
converters	O
exist	O
to	O
allow	O
connecting	O
newer	O
monitors	O
with	O
VGA	B-Protocol
connectors	I-Protocol
to	O
the	O
older	O
systems	O
and	O
workstations	B-Device
.	O
</s>
