Western Digital 250GB Scorpio. Hard drive capacity: 250 GB, Hard drive rotational speed: 5400 RPM, Hard drive interface: EIDE/ATA. Power consumption (standby): 0.23 W. Weight: 117 g. Operating temperature range (T-T): 5 - 60 °C, Storage temperature range (T-T): -40 - 65 °C, Operating relative humidity range: 8 - 90 %