Form Factor 2U Chassis Processor Support N/A Drive Bays JBOD Chassis: Up to 24 x 2.5" hot-swap HDD bay for JBOD solution Backplane BPN-SAS3-216EL2 (SAS3 12Gb/s dual expander backplane, with LSI SAS3 expander, support 24x 2.5" SATA3/SAS2/SAS3 drives, with 8x mini-SAS3 HD connectors) Front Panel Buttons: - Power On/Off Button - System Reset Button - Unit Identification (UID) Button LEDs: - 1 x Network Activity LEDs System Cooling Fans: 3 x 80x38mm Hotswap Cooling Fan Operating Environment (System)> Operating System Range: 5 C to 35 C (41 F to 95 F) Non-Operating Temperature Range: -40 C to 60 C (-40 F to 95 F) Operating Relative Humidity Range: 8% to 90% (Non-Condensing) Non-Operating Relative Humidity Range: 5% to 95% (Non-Condensing) Power Supply with Power Distributor 740W (1+1) Redundant high-efficiency power supply with PMBus AC Input: 100 to 240V 50/60Hz 9-3.5AMP DC Output: 4 Amp at +5V Standby / 61.7 Amp at +12V Certification: 80PLUS PLATINUM Certified Regulatory (Power Supply) Power Supply Safety / EMC: - USA: UL Listed, FCC - Canada: CUL Listed - Germany: TUV Certified - Europe/CE Mark - EN 60950/IEC 60950-Compliant Item Dimension (L"xW"xH") 27 x 12 x 35