Seagate ST320LT007, Momentus. Hard drive capacity: 320 GB, Hard drive size: 63.5 mm (2.5 "), Hard drive rotational speed: 7200 RPM. Power consumption (read): 1.30 W, Power consumption (write): 1.30 W, Power consumption (idle): 0.66 W. Weight: 92 g, Height: 7 mm, Width: 70.1 mm. Operating temperature range (T-T): 0 - 60 °C, Storage temperature range (T-T): -40 - 70 °C, Operating shock: 350 G