Buffalo DriveStation - External Hard Drive - 1TB. Hard drive capacity: 1024 GB, Hard drive rotational speed: 7200 RPM, Hard drive interface: Serial ATA. Colour of product: Black, Grey. Power consumption (typical): 25 W. Weight: 1270 g. Operating temperature range (T-T): 5 - 35 °C, Operating relative humidity range: 20 - 80 %