Seagate Pro 8TB 3.5", Serial ATA III, Barracuda. Hard drive capacity: 8000 GB, Hard drive interface: Serial ATA III, Hard drive speed: 7200 RPM. Power consumption (typical): 6.8 W, Power consumption (standby): 0.8 W, Power consumption (PowerSave): 0.8 W. Width: 4.01" (101.8 mm), Height: 1.03" (26.1 mm), Depth: 5.79" (147 mm)