Buffalo DriveStation Combo TurboUSB, 500GB. Hard drive capacity: 500 GB, Hard drive rotational speed: 7200 RPM, Hard drive interface: Serial ATA. Power consumption (typical): 17 W. Weight: 1.27 kg. Operating temperature range (T-T): 5 - 35 °C. Data transfer rate (max): 480 Mbit/s, Power requirements: AC100-240V 50/60 Hz