LaCie Biggest Quadra 4TB. Total storage capacity: 4000 GB, Hard drive capacity: 1000 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. Dimensions (WxDxH): 152.8 x 268.5 x 206.4 mm