Form Factor 2U chassis supports for maximum motherboard sizes - 13.68" x 13", E-ATX 12" x 13", ATX 12" x 10" motherboards Processor Support Dual and Single Intel and AMD processors Available Color Black Expansion Slots 7 low-profile expansion slot(s) Drive Bays 16 x 2.5" hot-swap SAS3/SATA drive bay 1 x 5.25" drive bay Backplane 16-port 2U SAS3 12Gbps direct-attached backplane, support up to 16x 2.5-inch SAS3/SATA3 HDD/SSD Peripheral Drives Optional 1 x slim DVD-ROM drive bay Optional 2 x USB 2.0 ports Optional 1 x COM port tray Front Panel Buttons Power On/Off button System Reset Button LEDs 2 Network Activity LEDs HDD activity LED Power Status LED Power Fail LED System Information LED Systems Cooling Fans 3 x 80mm heavy duty fan(s) with PWM fan(s) speed control Operating Environment (System) Operating Temperature Range 5oC - 35oC (41oF - 95oF) Non-Operating Temperature Range -40oC - 70oC (-40oF - 158oF) Operating Relative Humidity Range 8% - 90% (non-condensing) Non-Operating Relative Humidity Range 5% - 95% (non-condensing) Item Dimension (L"xW"xH") 39 x 29 x 11