Transcend StoreJet 25D3 (USB 3.0). Hard drive capacity: 1000 GB, Hard drive rotational speed: Variable, Hard drive interface: Serial ATA. Data transfer rate: 5000 Mbit/s, USB data transfer rates: 12, 480, 5000 Mbit/s. Colour of product: Black. Weight: 0.191 kg, Width: 82.1 mm, Depth: 17.3 mm. Operating temperature range (T-T): 5 - 55 °C