Western Digital Caviar Green 2TB. Hard drive interface: Serial ATA II, Hard drive capacity: 2000 GB, Hard drive size: 3.5". Power consumption (typical): 3.9 W, Power consumption (standby): 1.1 W, Start-up current: 1.775 A. Width: 10.2 cm, Height: 2.54 cm, Depth: 14.7 cm. Power requirements: 12VDC, Acoustic pressure emissions: 24 dB