Older model Compaq DL360s.. I'm thinking G1 series, don't even have USB ports at all, ie. circa p3-800. Some of the newer HP series servers with P4 and Xeon processors do have a couple USB ports on them.
I'm not aware of any rackmount USB hubs - but there's ALOT of stuff out there.
EDIT:
Only thing I could find was a product called a
Widget Rack designed for mounting several smaller devices made by the same company. Presumably, you could mount 5 of their
USB Hubs in one of the Widget Racks to give yourself a rackmounted solution.
No idea on what pricing may be, but if you're serious you can always contact the company and ask. I'm guessing that with a company url of highend.com it probably ain't gonna be cheap.
