<s>
Intel	O
's	O
Communication	O
Streaming	O
Architecture	O
(	O
CSA	O
)	O
was	O
a	O
mechanism	O
used	O
in	O
the	O
Intel	B-Architecture
Hub	I-Architecture
Architecture	I-Architecture
to	O
increase	O
the	O
bandwidth	O
available	O
between	O
a	O
network	O
card	O
and	O
the	O
CPU	O
.	O
</s>
<s>
It	O
consists	O
of	O
connecting	O
directly	O
the	O
network	O
controller	O
to	O
the	O
Memory	B-Device
Controller	I-Device
Hub	I-Device
(	O
northbridge	B-Device
)	O
,	O
instead	O
of	O
to	O
the	O
I/O	B-Device
Controller	I-Device
Hub	I-Device
(	O
southbridge	O
)	O
through	O
the	O
PCI	B-Protocol
bus	I-Protocol
,	O
which	O
was	O
the	O
common	O
practice	O
until	O
that	O
point	O
.	O
</s>
<s>
The	O
technology	O
was	O
only	O
used	O
in	O
Intel	O
chipsets	O
released	O
in	O
2003	O
,	O
and	O
was	O
largely	O
seen	O
as	O
a	O
stop-gap	O
measure	O
to	O
allow	O
Gigabit	O
Ethernet	O
chips	O
to	O
run	O
at	O
full-speed	O
until	O
the	O
arrival	O
of	O
a	O
faster	O
expansion	O
bus	O
(	O
it	O
was	O
also	O
used	O
to	O
connect	O
the	O
Wireless	B-General_Concept
networking	I-General_Concept
chips	O
in	O
Intel	O
's	O
Centrino	B-Device
mobile	O
platform	O
)	O
.	O
</s>
<s>
To	O
Intel	O
's	O
credit	O
though	O
,	O
CSA-connected	O
Ethernet	O
chips	O
did	O
show	O
consistently	O
higher	O
transfer	O
rates	O
than	O
comparable	O
PCI	B-Protocol
cards	I-Protocol
.	O
</s>
<s>
The	O
following	O
year	O
,	O
PCI	B-Protocol
Express	O
replaced	O
CSA	O
as	O
the	O
method	O
of	O
connecting	O
network	O
chips	O
in	O
Intel	O
's	O
chipsets	O
,	O
and	O
the	O
technology	O
was	O
subsequently	O
discontinued	O
.	O
</s>
