Plextor PX-PH500U3. Hard drive capacity: 500 GB, Hard drive rotational speed: 5400 RPM, Hard drive interface: USB 3.0. Colour of product: Silver. Weight: 0.162 kg, Width: 76.6 mm, Depth: 15 mm. Operating temperature range (T-T): 5 - 35 °C, Operating relative humidity range: 8 - 90 %. Certification: FCC (EMI, CE (Euro EMI/EMC/ESD)), RoHS