Aluratek ACUES350500F. Hard drive capacity: 500 GB, Hard drive rotational speed: 7200 RPM, Hard drive size: 88.9 mm (3.5 "). Colour of product: Black. Width: 35 mm, Depth: 202 mm, Height: 114 mm. LED indicators: Blue. Operating temperature range (T-T): 0 - 40 °C, Storage temperature range (T-T): -20 - 60 °C, Operating relative humidity range: 10 - 85 %