Iomega REV 35GB/90GB USB 2.0 External Drive. Hard drive capacity: 35 GB, Hard drive rotational speed: 4200 RPM, Hard disk average seek time: 25 ms. Colour of product: Black. Weight: 0.392 kg, Width: 110 mm, Depth: 156 mm. Operating temperature range (T-T): 0 - 45 °C, Storage temperature range (T-T): -40 - 65 °C, Operating relative humidity range: 8 - 90 %. Average latency: 7.1 ms, Compressed capacity: 90 GB, Minimum hard disk space: 100 MB