Western Digital Caviar Black 2TB. Hard drive capacity: 2000 GB, Hard drive interface: Serial ATA III, Hard drive speed: 7200 RPM. Power consumption (typical): 10.7 W. Width: 4" (101.6 mm), Height: 1.03" (26.1 mm), Depth: 5.79" (147 mm). Color of product: Black, Data transfer rate: 6 Gbit/s