Western Digital WDBAAU0030HBK. Hard drive capacity: 3000 GB, Hard drive rotational speed: 7200 RPM, Hard drive interface: USB 2.0. USB data transfer rates: 480 Mbit/s. Colour of product: Black. Input voltage: 100-240 V, Input frequency: 50/60 Hz. Weight: 1020 g, Width: 116.58 mm, Depth: 179 mm