Case Type Tower , Chipset Intel C621 , Socket S3647 , CPU's Xeon Scalable , Maximum number of CPUs 1 , 2xPCI-Express 3.0 8x , 4xPCI-Express 3.0 16x , 1x15pin D-sub , 2xUSB 2.0 , 9xUSB 3.1 , 1xUSB type C , 1xOptical S/PDIF , 3xRJ45 , 1xCOM via Header , Memory type DDR4 , Frequency speed 2933 MHz , Memory features RDIMM/LRDIMM/ECC , Memory slots 12 , PSU Output Power 1200 Watts , EATX , 8x3.5" SAS/SATA Hot-swap , Cooling & Ventilation System 2 Super quiet PWM chassis fans (support up to 4 fans); 1 Super quiet rear fan with optimal fan speed control