LaCie Biggest S2S with PCI-Express Card 2.5TB. Total storage capacity: 2500 GB, Hard drive capacity: 500 GB, RAID levels: 0, 1, 0+1, JBOD. Bundled software: Management Console (GUI). Power requirements: 110-240VAC, 50/60 Hz, Power consumption (typical): 150 W. Weight: 8.4 kg. Operating relative humidity range: 20 - 80 %, Operating temperature range (T-T): 0 - 35 °C, Storage relative humidity range: 10 - 90 %