SpecificationsMfr Part Number: CSE-826BAC4-R920LPBCase Type: 2U RackmountColor: BlackM/B Type: Motherboard Support Size - 12.0 x 13.0 inch, 13.68 x 13.00 inchProcessor Support: Dual, Single Intel/AMD ProcessorsDrive Bays: 8x SAS3 12Gbps and 4x Hybrid (NVMe/SAS3) 3.5" HDD, Enterprise SATA HDD recommendedExpansion Slots: 7x Low-Profile Expansion SlotsCooling System: 3x 8cm high-performance PWM fansFront Panel:Buttons: Power On/Off, System ResetLEDs: 2x Network Activity, Fan Fail/System Over Heat, HDD activity, Power Status, Unit Identification (UID)Power Supply: 920W 80 PLUS Platinum Certified high-efficiency (94+%) power supply w/ PMBusDimensions (WxDxH): 17.2 x 25.5 x 3.5 inch / 437.0 x 647.0 x 89.0 mmGross Weight: 55.0 lbs / 24.95 kgChassis Only. CPU, MB, HD, memory and other parts are not included.