Toshiba 160GB Serial ATA II, 2.5" HDD. Hard drive capacity: 160 GB, Hard drive size: 63.5 mm (2.5 "), Hard drive rotational speed: 5400 RPM. Power consumption (typical): 2.2 W, Power consumption (standby): 0.15 W, Power consumption (PowerSave): 0.15 W. Weight: 101 g, Height: 9.5 mm, Width: 100 mm. Operating temperature range (T-T): 5 - 55 °C, Storage temperature range (T-T): -20 - 60 °C, Operating relative humidity range: 8 - 90 %