Western Digital 320GB 3.5" SATA II Serial ATA hard disk driv

Western Digital 320GB 3.5" SATA II. Hard drive capacity: 320 GB, Hard drive interface: Serial ATA II, Hard drive speed: 7200 RPM. Power consumption (typical): 9.50 W, Power consumption (standby): 1.60 W. Width: 4" (101.6 mm), Height: 1.03" (26.1 mm), Depth: 5.79" (147 mm). Hard disk transfer rate: 748 Mbit/s, Dimensions (WxDxH): 4 x 5.79 x 1.03" (101.6 x 147 x 26.1 mm), Drive device, transfer rate: 300 MB/s