Western Digital Scorpio Blue 320GB Serial ATA III hard disk

Western Digital Scorpio Blue 320GB. Hard drive capacity: 320 GB, Hard drive interface: Serial ATA III, Hard drive speed: 5400 RPM. Power consumption (standby): 0.25 W. Width: 2.75" (69.8 mm), Height: 0.374" (9.5 mm), Depth: 3.94" (100.2 mm)