Formac 320GB Disk Mini FireWire & USB2 Black. Hard drive capacity: 320 GB, Hard drive rotational speed: 5400 RPM, Drive device, buffer size: 8 MB. Colour of product: Black. Weight: 0.124 kg, Width: 129 mm, Depth: 92 mm. Operating temperature range (T-T): 10 - 35 °C, Operating relative humidity range: 20 - 80 %. Cables included: USB 2.0