Freecom FHD-2 Pro 2.5" HD 30GB USB-2, FHD-2 PRO. Hard drive capacity: 30 GB, Hard drive rotational speed: 4200 RPM, Hard drive interface: USB 2.0. Weight: 175 g. Operating temperature range (T-T): 5 - 60 °C. Average latency: 7.14 ms, Hard disk transfer rate: 480 Mbit/s, Minimum processor: Pentium-II 233 MHz