Samsung 250GB Ultra ATA Hard Drive, SpinPoint V. Hard drive interface: Ultra-ATA/100, Hard drive capacity: 250 GB, Hard drive size: 8.89 cm (3.5"). Width: 10.16 cm, Height: 2.54 cm, Depth: 14.605 cm. Hard disk transfer rate: 830 Mbit/s, Compatibility: PC, Drive device, transfer rate: 100 MB/s