Drive: SAS & SATA Temperature: 0 to 40°C Humidity: 5% to 95%,non-condensing Dimensions: 18.9" x 19.0" x 3.5" Weight: 25.0 lbs. Features: 2U rackmount Drive Bay: 12 x hot-swappable SATA II, III/SAS 6G drive bays LED indicators for power and activity on each HDD tray Backplanes are horizontal mounted for better ventilation RoHS Compliant OS Independent Parts: 1 year limited Labor: 1 year limited