Hitachi Deskstar 7K1000 1TB 3.5", Deskstar. Hard drive capacity: 1024 GB, Hard drive size: 88.9 mm (3.5 "), Hard drive rotational speed: 7200 RPM. Weight: 700 g, Height: 26 mm, Width: 102 mm. Operating temperature range (T-T): 5 - 60 °C, Storage temperature range (T-T): -40 - 70 °C, Operating relative humidity range: 8 - 90 %. Compliance industry standards: RoHS