Seagate Green 1TB, Barracuda. Hard drive capacity: 1024 GB, Hard drive size: 88.9 mm (3.5 "), Hard drive rotational speed: 5900 RPM. Power consumption (typical): 5.8 W, Power consumption (idle): 4.5 W, Start-up current: 2 A. Weight: 0.635 kg, Height: 26.1 mm, Width: 101.6 mm. Operating temperature range (T-T): 0 - 60 °C, Storage temperature range (T-T): -40 - 70 °C, Operating shock: 80 G