Imation I23228. USB connector type: USB A. Power consumption (typical): 6.6 W. Weight: 0.54 kg. Hard drive capacity: 160 GB, Supported hard disk drive interfaces: Serial ATA, Supported hard disk drive sizes: 63.5 mm (2.5 "). Dimensions (WxDxH): 109.8 x 177.5 x 51.8 mm, Drive device, transfer rate: 25 MB/s, Interface: USB