Freecom Classic Mobile 2.5" Hard Drive 80GB, Classic. Hard drive capacity: 80 GB, Hard drive interface: USB 2.0, Hard drive size: 63.5 mm (2.5 "). Colour of product: Black. Weight: 0.35 kg, Width: 72 mm, Depth: 128 mm. Operating temperature range (T-T): 5 - 55 °C, Storage temperature range (T-T): -40 - 65 °C. Average latency: 4.2 ms, Compatibility: PC, Mean time between failures (MTBF): 50000 h