Case Type 2U rack | Chipset Intel C621 | Socket S3647 | CPU's Xeon Scalable | Maximum number of CPUs 8 | 4xPCI-Express 3.0 8x | 4xPCI-Express 3.0 16x | 4x15pin D-sub | 8xUSB 3.0 | 4xRJ45 | Memory type DDR4 | Frequency speed 2933/2666/2400/2133 MHz | Memory features RDIMM/LRDIMM | Memory slots 64 | PSU Redundant-Power-Capable | PSU Output Power 2200 Watts | 12x3.5" SAS/SATA Hot-swap | Cooling & Ventilation System 4 x 80x80x38mm (16,300rpm) | Included Accessories 8 x CPU heatsinks1 x Rail Kit