PB Go 2.5" 500GB

USB 2.0 - 5400 rpm - 8 MB Buffer - 2.5" - Hot Swappable

PB Go 2.5" 750GB

USB 3.0 - SATA - 5400 rpm - 2.5" - Hot Swappable

PB GO 750GB

USB 2.0 - SATA - 5400 rpm - 2.5"