Apricorn Aegis 750 GB USB 2.0 Portable External Hard Drive with Integrated Cable A25-USB-750 (Grey) High Capacity Bus Powered - No need for an AC Adapter Integrated USB Cable Extensive Shock Mounting- 16-point omnidirectional shock mounting system System Requirements: Hardware: Pentium CPU, Apple G3 or later, 128MBs RAM, USB, FireWire, CD ROM or CD-R/RW drive Software: Windows 2000, XP & Vista, Mac OS 9.2 or later and 10.X