<s>
Nvidia	O
's	O
BR02	O
"	O
High	B-General_Concept
Speed	I-General_Concept
Interconnect	I-General_Concept
"	O
(	O
"	O
HSI	O
"	O
)	O
chip	O
was	O
used	O
in	O
their	O
early	O
PCI	O
Express	O
graphics	O
cards	O
,	O
where	O
it	O
acted	O
as	O
a	O
bridge	O
between	O
the	O
PCI	O
Express	O
connection	O
to	O
the	O
computer	O
and	O
the	O
natively	O
AGP	B-Architecture
GPU	B-Architecture
.	O
</s>
<s>
This	O
allowed	O
Nvidia	O
to	O
release	O
a	O
PCI	O
Express	O
graphics	O
card	O
without	O
redesigning	O
the	O
graphics	O
card	O
's	O
GPU	B-Architecture
for	O
the	O
new	O
interface	O
.	O
</s>
<s>
Nvidia	O
has	O
also	O
developed	O
an	O
HSI	O
chip	O
which	O
works	O
in	O
the	O
opposite	O
direction	O
,	O
allowing	O
natively	O
PCI	O
Express	O
GPUs	B-Architecture
to	O
be	O
used	O
in	O
graphics	O
cards	O
released	O
for	O
the	O
AGP	B-Architecture
interface	O
.	O
</s>
<s>
This	O
chip	O
is	O
no	O
longer	O
used	O
on	O
modern	O
Nvidia	O
GPUs	B-Architecture
due	O
to	O
the	O
obsolescence	O
of	O
the	O
AGP	B-Architecture
standard	O
.	O
</s>
