Western Digital Blue. Hard drive capacity: 500 GB, Hard drive interface: Serial ATA, Hard drive speed: 7200 RPM. Power consumption (standby): 0.7 W, Power consumption (read): 6.8 W, Power consumption (write): 6.8 W. Width: 4" (101.6 mm), Height: 1" (25.4 mm), Depth: 5.79" (147 mm). Power requirements: DC 12V, Color of product: Black, Data transfer rate: 6 Gbit/s