Western Digital 1TB My Passport. Hard drive capacity: 1000 GB, Hard drive interface: USB 3.0, Hard drive size: 63.5 mm (2.5 "). Data transfer rate: 5000 Mbit/s, USB data transfer rates: 5000 Mbit/s. Colour of product: Silver. Weight: 190 g, Width: 82 mm, Depth: 111 mm. Operating temperature range (T-T): 5 - 40 °C, Storage temperature range (T-T): -20 - 65 °C