Case Type 2U rack , Socket SP3 , CPU's AMD EPYC , SATA 3.0 , 7xPCI-Express 3.0 8x , 1xPCI-Express 3.0 16x , 1x15pin D-sub , 3xUSB 3.0 , 1xCOM , 1xRJ45 , Memory type DDR4 , Frequency speed 2666 MHz , Memory features ECC , Memory slots 32 , PSU Output Power 1600 Watts , 12x3.5" SATA Hot-swap , Cooling & Ventilation System 4 heavy-duty PWM fans with optimal fan speed control