Seagate 3TB SATAIII, Barracuda. Hard drive capacity: 3000 GB, Hard drive interface: Serial ATA III, Hard drive speed: 7200 RPM. Power consumption (typical): 8 W, Power consumption (standby): 0.75 W, Power consumption (off): 0.75 W. Width: 4" (101.6 mm), Height: 0.794" (20.2 mm), Depth: 5.79" (147 mm)