Hitachi Touro Desk. Hard drive capacity: 4000 GB, Hard drive interface: USB 3.0, Hard drive size: 88.9 mm (3.5 "). Data transfer rate: 5000 Mbit/s, USB data transfer rates: 12, 480, 5000 Mbit/s. Colour of product: Black. Width: 129 mm, Depth: 60 mm, Height: 183 mm. Cables included: USB