Western Digital My Book 2 Essential 500GB External USB 2.0 Hard Drive
 
Buffalo Technology Buffalo DriveStation - Hard drive - 500 GB - external - Hi-Speed USB - 7200 rpm
 
Iomega Triple interface 500 GB external hard drive USB 2.0/FireWire 400/FireWire 800 (33648)
 
Iomega Triple interface 500 GB external hard drive USB 2.0/FireWire 400/FireWire 800 (33648)
 
Iomega Prestige Desktop Hard Drive - Hard drive - 500 GB - external - 3.5" - Hi-Speed USB - buffer: 8 MB - dark silver
 
Maxtor Seagate Jade L/500GB USB2.0 7200rpm External Retail Hard Drive
 
Iomega UltraMax Desktop Hard Drive - Hard drive - 500 GB - external - FireWire / FireWire 800 / Hi-Speed USB / eSATA-300 - 7200 rpm - buffer: 8 MB
 
Seagate Maxtor OneTouch 4 - Hard drive - 500 GB - external - 3.5" - Hi-Speed USB - 7200 rpm - buffer: 16 MB
 
Dvico TViX PvR R-3300 500 GB External Multimedia Hard Drive - Ethernet/USB 2.0
 
Western Digital WD Elements Desktop WDE1UBK5000 - Hard drive - 500 GB - external - Hi-Speed USB
 
Iomega - Prestige 500 GB USB 2.0 External Hard Drive
 
Iomega MiniMax Desktop Hard Drive - Hard drive - 500 GB - external - Hi-Speed
 
Seagate FreeAgent XTreme 500 GB USB 2.0/FireWire 400/eSATA External Hard Drive
 
Iomega eGo Portable - Hard drive - 500 GB - external - 2.5" - FireWire / Hi-Speed USB - 5400 rpm - buffer: 8 MB - black
 
Western Digital My Book Home Edition 500 GB External Hard Drive - USB 2.0/Firewire/eSATA