Freecom Mobile Drive Sq 1TB. Hard drive capacity: 1000 GB, Hard drive interface: Serial ATA, Hard drive size: 63.5 mm (2.5 "). Data transfer rate: 5000 Mbit/s, USB data transfer rates: 5000 Mbit/s. Colour of product: Black, Silver. Weight: 0.21 kg, Width: 120 mm, Depth: 120 mm. Operating temperature range (T-T): 10 - 35 °C, Storage temperature range (T-T): -20 - 70 °C