Amacom ez2disk 400GB. Hard drive capacity: 400 GB, Hard drive interface: USB 2.0, FireWire 400, Hard drive size: 88.9 mm (3.5 "). Colour of product: Black, Silver. Weight: 1000 g, Width: 120 mm, Depth: 200 mm. Average latency: 5.5 ms, Data transfer rate (max): 480 Mbit/s, Material: Aluminium