The 320GB Western Digital Elements Portable Hard Drive is adaptable, connecting to both Windows and Mac notebook, and desktop computers, using the standard USB 2.0, so you don't have to worry about carrying around hefty power adaptors!
General Information Capacity 320 GB
Interface USB 2.0
Transfer Rate Up to 480 Mbps
Size 124.4 x 78.6 x 17.8 mm
Weight 0.155 kg
Seems cheap for a 320gb portable 2.5" USB drive (NOT 3.5").
Also compatible with USB Loaders on Wii ;o)