Seagate Barracuda 7200.11 SATA 3Gb/s 320-GB Hard Drive, Barracuda. Hard drive capacity: 320 GB, Hard drive size: 88.9 mm (3.5 "), Hard drive rotational speed: 7200 RPM. Power consumption (standby): 8 W. Weight: 0.38 kg, Height: 20 mm, Width: 101.6 mm. Operating temperature range (T-T): 0 - 60 °C, Storage temperature range (T-T): -40 - 70 °C, Operating shock: 63 G