<s>
Matrox	O
Graphics	O
eXpansion	O
Module	O
(	O
GXM	B-Device
)	O
supports	O
the	O
use	O
of	O
multiple	B-General_Concept
monitors	I-General_Concept
over	O
a	O
single	O
video	O
source	O
by	O
splitting	O
the	O
output	O
of	O
a	O
video	O
source	O
,	O
providing	O
an	O
enlarged	O
workspace	B-Application
or	O
gaming	O
environment	O
.	O
</s>
<s>
GXM	B-Device
is	O
not	O
a	O
graphics	B-Device
card	I-Device
itself	O
,	O
and	O
in	O
fact	O
requires	O
a	O
fairly	O
powerful	O
graphics	B-Device
card	I-Device
for	O
playing	O
games	O
on	O
multiple	B-General_Concept
monitors	I-General_Concept
.	O
</s>
<s>
While	O
most	O
modern	O
graphics	B-Device
cards	I-Device
have	O
support	O
for	O
dual	B-General_Concept
monitors	I-General_Concept
and	O
can	O
expand	O
a	O
desktop	O
across	O
three	O
screens	O
,	O
3D	O
games	O
are	O
generally	O
limited	O
to	O
a	O
single	O
monitor	O
.	O
</s>
<s>
The	O
GXM	B-Device
uses	O
the	O
standard	O
Extended	B-General_Concept
Display	I-General_Concept
Identification	I-General_Concept
Data	I-General_Concept
(	O
EDID	B-General_Concept
)	O
structure	O
to	O
communicate	O
its	O
capabilities	O
to	O
the	O
graphics	B-Device
card	I-Device
just	O
as	O
a	O
monitor	O
does	O
.	O
</s>
<s>
However	O
,	O
the	O
GXM	B-Device
's	O
resolution	B-General_Concept
includes	O
all	O
pixels	B-Algorithm
in	O
the	O
three	O
monitors	O
.	O
</s>
<s>
If	O
the	O
TripleHead2Go	B-Device
were	O
hooked	O
up	O
to	O
three	O
monitors	O
with	O
800×600	B-General_Concept
resolution	B-General_Concept
,	O
the	O
TripleHead2Go	B-Device
would	O
report	O
itself	O
as	O
a	O
single	O
monitor	O
with	O
2400×600	O
resolution	B-General_Concept
.	O
</s>
<s>
The	O
graphics	B-Device
card	I-Device
then	O
sends	O
out	O
a	O
2400×600	O
signal	O
which	O
the	O
TripleHead2Go	B-Device
divides	O
and	O
distributes	O
to	O
the	O
appropriate	O
monitors	O
.	O
</s>
<s>
The	O
TripleHead2Go	B-Device
supports	O
3	O
displays	O
at	O
the	O
output	O
,	O
and	O
has	O
maximum	O
resolution	B-General_Concept
of	O
3840×1024	O
@60Hz	O
(	O
1280×1024	O
each	O
)	O
.	O
</s>
<s>
The	O
low	O
60Hz	O
refresh	O
rate	O
is	O
used	O
in	O
all	O
except	O
3072x768	O
resolution	B-General_Concept
which	O
makes	O
it	O
unsuitable	O
for	O
CRT	B-Device
monitors	I-Device
(	O
however	O
,	O
the	O
severity	O
of	O
flickering	O
perceived	O
by	O
viewers	O
depend	O
on	O
other	O
factors	O
)	O
.	O
</s>
<s>
The	O
TripleHead2Go	B-Device
Digital	O
Edition	O
supports	O
DVI-I	B-Protocol
output	O
.	O
</s>
<s>
The	O
maximum	O
resolution	B-General_Concept
was	O
originally	O
3840×1024	O
@60Hz	O
(	O
1280×1024	O
each	O
)	O
,	O
but	O
on	O
August	O
5	O
,	O
2008	O
Matrox	O
announced	O
the	O
support	O
for	O
new	O
widescreen	O
resolution	B-General_Concept
,	O
with	O
a	O
maximum	O
resolution	B-General_Concept
of	O
5040×1050	O
@57Hz	O
(	O
1680×1050	O
each	O
)	O
.	O
</s>
<s>
It	O
is	O
similar	O
to	O
TripleHead2Go	B-Device
,	O
except	O
it	O
supports	O
only	O
2	O
displays	O
.	O
</s>
<s>
It	O
has	O
maximum	O
resolution	B-General_Concept
of	O
2560×1024	O
@60Hz	O
(	O
1280×1024	O
each	O
)	O
.	O
</s>
<s>
Compared	O
to	O
original	O
DualHead2Go	O
,	O
this	O
one	O
supports	O
DVI-I	B-Protocol
output	O
by	O
converting	O
input	O
signal	O
to	O
digital	O
,	O
but	O
it	O
still	O
supports	O
analog	O
output	O
.	O
</s>
<s>
It	O
has	O
maximum	O
resolution	B-General_Concept
of	O
3840×1200	O
@60Hz	O
(	O
1920×1200	O
each	O
)	O
.	O
</s>
<s>
At	O
this	O
writing	O
(	O
2006	O
)	O
the	O
Matrox	B-Device
TripleHead2Go	I-Device
was	O
the	O
only	O
consumer	O
level	O
device	O
which	O
allows	O
3D	O
gaming	O
across	O
three	O
monitors	O
with	O
an	O
expanded	O
field	O
of	O
view	O
(	O
FOV	O
)	O
.	O
</s>
<s>
Very	O
few	O
games	O
directly	O
support	O
playing	O
at	O
these	O
large	O
resolutions	O
,	O
although	O
many	O
can	O
be	O
tweaked	O
to	O
run	O
on	O
the	O
TripleHead2Go	B-Device
.	O
</s>
<s>
Some	O
problems	O
remain	O
with	O
distortions	O
to	O
the	O
user	B-Application
interface	I-Application
and	O
geometric	O
distortions	O
at	O
the	O
edges	O
of	O
the	O
display	O
since	O
the	O
games	O
were	O
n't	O
written	O
with	O
such	O
a	O
wide	O
FOV	O
in	O
mind	O
.	O
</s>
<s>
These	O
display	O
controllers	O
allow	O
users	O
to	O
use	O
3	O
or	O
more	O
monitors	O
on	O
a	O
single	O
video	B-Device
card	I-Device
,	O
using	O
at	O
least	O
one	O
display	B-Protocol
port	I-Protocol
on	O
the	O
back	O
of	O
the	O
card	O
.	O
</s>
