Buffalo LinkStation Pro Duo 1.5 TB. Total storage capacity: 1500 GB, Hard drive capacity: 750 GB, RAID levels: 0, 1. Networking features: Gigabit Ethernet, Data transfer rate (max): 1000 Mbit/s. Power requirements: AC 100 - 240 V, 50/60 Hz, Power consumption (typical): 21 W. Weight: 2.8 kg. Operating temperature range (T-T): 0 - 35 °C