LTL BIG DSK 500GB 7200RPM RAID 0 AND FWIRE USB 2.0 Faster and more compact than most desktop hard disks, this small, lightweight portable powerhouse boasts high capacity and speed for its size. With built-in raid 0 and four interfaces, it offers cross-platform compatibility with any PC or Mac and unrivaled burst transfer rates. Exclusively designed by Neil Poulton for LaCie, it has a unique, sturdy, all-aluminum heat sink body that dissipates heat without a fan for silent operation and superior reliability. This firewire bus-powered innovation offers daisy-chaining to digital video cameras and bootability via FireWire (Mac) or ESATA (Windows). Fully plug & play with Mac OS X v10.5 leopard (including time machine) and Windows Vista, it comes with EMC Retrospect Express advanced backup and restoration software. It's ideal for professional users such as audio/video pros who need fast mobile storage and ergonomic versatility.