To avoid confusion: can someone tell me if a PC (quite high spec a few years ago) quad core etc with ASUS P5NE-SLI motherboard can power USB 3? This would ease my backup time problem (I think - it may be the speed increase is not as great as claimed)
So 2 questions-
 Can my PC be unpgraded to USB 3
 Is USB 3 in fact as fast as is claimed, or would i be disappointed in file transfer times? I have quite a lot of informative websites, which are grabbed, a lot of data.