Iomega Prestige 640 GB USB 2.0 Portable External Hard Drive 34744 Iomega Portable Hard Drive, USB 2.0/Power Cable Compact -Super-compact drive fits easily into a shirt pocket, laptop bag, or backpack Easy-to-use - USB 2.0 interface available with no external power supply required Secure - Iomega Protection Suite includes McAfee VirusScan Plus, EMC Retrospect Express Backup software, Iomega QuikProtect Specifications