Western Digital 500GB Elements. Hard drive capacity: 500 GB, Hard drive rotational speed: 5400 RPM, Hard drive interface: USB 2.0. Colour of product: Black. Weight: 200 g, Width: 78 mm, Depth: 126 mm. Operating temperature range (T-T): 5 - 40 °C, Storage temperature range (T-T): -40 - 65 °C. Certification: RoHS