Seagate Momentus XT 250GB, Momentus. Hard drive capacity: 250 GB, Hard drive size: 63.5 mm (2.5 "), Hard drive rotational speed: 7200 RPM. Power consumption (typical): 1.1 W, Power consumption (idle): 0.8 W, Start-up current: 1 A. Weight: 105 g, Height: 9.7 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