BUSlink 250GB HDD. Hard drive capacity: 250 GB, Hard drive rotational speed: 7200 RPM, Hard drive interface: Serial ATA. Colour of product: Silver. Weight: 1135 g, Width: 210 mm, Depth: 136 mm. Data transfer rate (max): 480 Mbit/s, Hard disk transfer rate: 180 Mbit/s, Interface type: USB 2.0