Acomdata E5 HybridDrive Hard Drive. Hard drive capacity: 250 GB, Hard drive rotational speed: 7200 RPM, Hard drive interface: USB 2.0. Colour of product: Silver. Weight: 1090 g, Width: 117 mm, Depth: 206.5 mm. Operating temperature range (T-T): 5 - 35 °C, Operating relative humidity range: 8 - 90 %. Average latency: 4.2 ms, Full stroke seek: 21 ms, Minimum processor: 233 MHz