> Actually, the machine is an U2 (dual 250 2G) so I have four slots <snip>. > Since I would probably be using it to do network backups, I > wanted > multiple 100T interfaces. ( I have three 100T networks in my house, <snip> What about a Sun X1042 or X1049? These will give you 4x10/100 ports nicely. Good luck!