<s>
Ultra	B-Device
ATX	I-Device
is	O
an	O
motherboard	B-Device
form	O
factor	O
proposed	O
by	O
Foxconn	O
during	O
CES	O
in	O
January	O
2008	O
.	O
</s>
<s>
In	O
principle	O
,	O
it	O
is	O
simply	O
an	O
oversized	O
version	O
of	O
ATX	B-Language
that	O
supports	O
10	O
expansion	B-Device
slots	I-Device
,	O
as	O
opposed	O
to	O
the	O
seven	O
slots	O
of	O
ATX	B-Language
,	O
and	O
it	O
requires	O
a	O
full-tower	B-General_Concept
computer	B-General_Concept
case	I-General_Concept
to	O
support	O
the	O
added	O
height	O
of	O
the	O
motherboard	B-Device
.	O
</s>
<s>
Using	O
the	O
same	O
reference	O
width	O
of	O
ATX	B-Language
,	O
the	O
Ultra	B-Device
ATX	I-Device
form	O
factor	O
expands	O
its	O
length	O
to	O
.	O
</s>
<s>
Video	B-Device
cards	I-Device
often	O
trend	O
towards	O
double-slot	O
designs	O
,	O
due	O
to	O
the	O
need	O
for	O
a	O
large	O
heatsink	O
to	O
effectively	O
cool	O
the	O
graphics	O
chipset	O
.	O
</s>
<s>
As	O
a	O
consequence	O
,	O
the	O
expansion	B-Device
slot	I-Device
below	O
the	O
slot	O
used	O
by	O
the	O
graphics	B-Device
card	I-Device
is	O
effectively	O
blocked	O
and	O
cannot	O
be	O
used	O
.	O
</s>
<s>
This	O
leaves	O
an	O
ATX	B-Language
quad-graphics	O
system	O
with	O
effectively	O
no	O
expansion	B-Device
slots	I-Device
,	O
as	O
all	O
of	O
the	O
additional	O
slots	O
are	O
blocked	O
by	O
the	O
video	B-Device
cards	I-Device
.	O
</s>
<s>
The	O
main	O
purpose	O
of	O
Ultra	B-Device
ATX	I-Device
is	O
to	O
overcome	O
this	O
limitation	O
and	O
allow	O
high-end	O
systems	O
to	O
incorporate	O
quad-graphics	O
with	O
additional	O
room	O
for	O
expansion	O
.	O
</s>
<s>
EVGA	O
later	O
introduced	O
its	O
13.5-inch	O
"	O
X58	O
Classified	O
4-Way	O
SLI	O
"	O
,	O
which	O
requires	O
an	O
Ultra-ATX	O
sized	O
case	O
to	O
support	O
four	O
"	O
double-slot	O
"	O
graphics	B-Device
cards	I-Device
.	O
</s>
<s>
Available	O
Ultra-ATX	O
cases	O
include	O
the	O
Thermaltake	O
Xaser	O
VI	O
,	O
LIAN	O
LI	O
PC-P80	O
and	O
HEC	O
Compucase	O
98	O
98R9BB	O
.	O
</s>
