LaCie Biggest S2S 2,5 TB. Hard drive capacity: 2500 GB, Hard drive rotational speed: 7200 RPM, Hard drive interface: Serial ATA II. Power consumption (typical): 150 W. RAID levels: 0, 1, 0+1, JBOD. Weight: 8.4 kg. Operating temperature range (T-T): 0 - 35 °C, Operating relative humidity range: 20 - 80 %, Storage relative humidity range: 10 - 90 %