Hitachi Ultrastar A7K1000 500GB SATA 3.0 Gb/s, Ultrastar. Hard drive capacity: 500 GB, Hard drive size: 88.9 mm (3.5 "), Hard drive rotational speed: 7200 RPM. Power consumption (typical): 7.3 W. Weight: 700 g, Height: 26.1 mm, Width: 101.6 mm. Operating temperature range (T-T): 5 - 60 °C, Storage temperature range (T-T): -40 - 70 °C, Non-operating shock: 300 G