Acomdata E5 HybridDrive Hard Drive. Hard drive capacity: 750 GB, Hard drive rotational speed: 7200 RPM, Hard drive interface: USB 2.0. Colour of product: Grey. Weight: 1000 g. Operating temperature range (T-T): 5 - 35 °C. Minimum system requirements: -Windows PCs Minimum 233 MHz processor (Pentium, Celeron, AMD, etc.) , Relative humidity: 8 - 90 %, Supported data transfer rates: 480 Mbps