LaCie Biggest Quadra 2TB. Total storage capacity: 2000 GB, Hard drive capacity: 500 GB, RAID levels: 0, 0+1, 5. Data transfer rate (max): 1500 Mbit/s. Bundled software: EMC Retrospect Express advanced backup & data restore. Weight: 11500 g. Compatible operating systems: -Windows 2000, Server 2003, XP, Vista -Mac OS 10.2.8