Buffalo LinkStation Pro. Total storage capacity: 500 GB, Hard drive capacity: 500 GB. Compliance industry standards: IEEE802.3ab, IEEE802.3u, IEEE802.3, Data transfer rate (max): 1000 Mbit/s. Power requirements: 100 - 240V 50/60Hz, Power consumption (typical): 17 W. Weight: 1.1 kg. Operating relative humidity range: 20 - 80 %, Operating temperature range (T-T): 5 - 35 °C