Western Digital My Book Premium Edition 500GB
Firewire/USB, 500 GB, 7200 rpm, External, Interface: Firewire/USB, Interface Type: IEEE 1394 (FireWire) / Hi-Speed USB, Internal/External: Extern, Storage capacity: 500.0 GB, Cache memory: 16.0 MB, Size: External, Revolutions per min: 7200 rpm