<s>
All	O
the	O
drives	O
support	O
USB	O
2.0	O
,	O
and	O
the	O
Xtreme	O
also	O
has	O
2	O
FireWire	B-Protocol
400	O
ports	O
and	O
an	O
eSATA	O
port	O
.	O
</s>
<s>
Mac	O
versions	O
of	O
the	O
drives	O
have	O
different	O
designs	O
and	O
supporting	O
FireWire	B-Protocol
800	O
,	O
400	O
and	O
USB	O
2.0	O
:	O
the	O
FreeAgent	O
Go	O
for	O
Mac	O
,	O
FreeAgent	O
Desk	O
for	O
Mac	O
and	O
the	O
FreeAgent	O
Go	O
Pro	O
for	O
Mac	O
.	O
</s>
<s>
The	O
FreeAgent	O
GoFlex	O
drives	O
support	O
USB	O
2.0	O
,	O
USB	O
3.0	O
(	O
backwards	O
compatible	O
with	O
USB	O
2.0	O
ports	O
)	O
,	O
FireWire	B-Protocol
,	O
and	O
eSATAp	O
(	O
aka	O
eSATA/USB	O
or	O
powered	O
eSATA	O
)	O
;	O
they	O
are	O
supplied	O
fitted	O
with	O
an	O
adapter	O
for	O
one	O
of	O
these	O
standards	O
(	O
often	O
USB	O
2.0	O
)	O
,	O
or	O
none	O
(	O
bare	O
drive	O
)	O
,	O
and	O
additional	O
adapters	O
can	O
be	O
purchased	O
.	O
</s>
