Hitachi G-TECHNOLOGY G-RAID 8TB Dual-HDD. Hard drive capacity: 8000 GB, Hard drive rotational speed: 7200 RPM, Hard drive interface: Serial ATA II. Data transfer rate: 200 Mbit/s, USB data transfer rates: 480 Mbit/s, FireWire data transfer rates: 400, 800 Mbit/s. Colour of product: Silver. Weight: 1750 g, Width: 130 mm, Depth: 235 mm. Cables included: eSATA, FireWire, USB