<s>
and	O
layer-7	B-Application
protocol	O
analysis	O
.	O
</s>
<s>
A	O
version	O
of	O
the	O
software	O
is	O
bundled	O
with	O
some	O
Gigabyte	O
motherboards	B-Device
under	O
the	O
name	O
"	O
Gigabyte	O
Speed	O
"	O
and	O
some	O
ASRock	O
motherboards	B-Device
as	O
"	O
XFast	O
LAN	O
"	O
.	O
</s>
<s>
The	O
program	O
uses	O
TCP	B-Protocol
flow	O
control	O
to	O
send	O
new	O
data	O
only	O
after	O
older	O
data	O
has	O
been	O
received	O
.	O
</s>
<s>
Data	O
may	O
also	O
be	O
throttled	O
by	O
lowering	O
the	O
TCP	B-Protocol
window	I-Protocol
size	O
.	O
</s>
<s>
The	O
software	O
contains	O
a	O
packet	B-Protocol
filter	I-Protocol
firewall	O
.	O
</s>
<s>
In	O
recent	O
years	O
some	O
driver	B-Application
issues	I-Application
have	O
been	O
found	O
with	O
cFosSpeed	B-Protocol
but	O
they	O
are	O
easily	O
fixable	O
.	O
</s>
