Seagate DiamondMax22 750GB, DiamondMax. Hard drive capacity: 750 GB, Hard drive size: 88.9 mm (3.5 "), Hard drive rotational speed: 7200 RPM. Start-up current: 2.8 A. Weight: 640 g. Operating temperature range (T-T): 0 - 60 °C, Storage temperature range (T-T): -40 - 70 °C, Operating shock: 70 G