usb 2.0

[redhat]

I have a question about whether or not fedora is able to utilize usb 2.0
yet?  If so, what cards might be compatible with fedora?  What kind of
speeds can be expected?  Secondly, what 1000MB NIC cards are working
with fedora?  I have a server set up to serve video clips for an editing
bay but the 10/100 speeds are killing me.  Thus the reason for the
USB/1000MB NIC questions.
thanks,
DF