HGST C15K600, Ultrastar. Hard drive capacity: 600 GB, Hard drive interface: SAS, Hard drive speed: 15000 RPM. Power consumption (typical): 7.5 W, Power consumption (idle): 5.8 W. Width: 2.76" (70.1 mm), Height: 0.583" (14.8 mm), Depth: 3.95" (100.5 mm)