Freecom ToughDrive Pro 100GB USB-2, ToughDrive Pro 2.5. Hard drive capacity: 100 GB, Hard drive rotational speed: 4200 RPM, Hard drive interface: USB 2.0. Colour of product: Black. Weight: 175 g, Width: 80 mm, Depth: 140 mm. Operating temperature range (T-T): 5 - 60 °C, Storage temperature range (T-T): -20 - 80 °C. Average latency: 7.14 ms, Mean time between failures (MTBF): 50000 h, Minimum processor: Pentium II 233 Mhz