Formac Disk Maxi 500GB. Hard drive capacity: 500 GB, Hard drive rotational speed: 7200 RPM, Hard drive interface: USB 2.0. Colour of product: Silver. Weight: 1500 g, Width: 117 mm, Depth: 194 mm. Data transfer rate (max): 800 Mbit/s, Minimum processor: 500Mhz, Minimum RAM: 128 MB