HGST 15K600 300GB, Ultrastar. Hard drive capacity: 300 GB, Hard drive interface: SAS, Hard drive speed: 15000 RPM. Power consumption (typical): 16.6 W, Power consumption (idle): 10.7 W. Width: 4" (101.6 mm), Height: 1.02" (25.8 mm), Depth: 5.76" (146.2 mm)