Key Features Intel® Xeon® Scalable Processors, Single Socket P (LGA 3647) supported, CPU TDP support 165W Intel® C621 Chipset Up to 1TB ECC 3DS LRDIMM, up to DDR4-2666MHz; 8x DIMM slots Expansion slots: 2 PCI-E 3.0 x8 (in x16), 4 PCI-E 3.0 x8, 1 PCI-E 3.0 x4 (in x8) 2 GbE LAN ports 8 SATA3 (6Gbps) ports I/O: 1 VGA, 2 COM, TPM header 2 SuperDOM with built-in power 5 USB 3.0 (2 rear, 1 Type-A, 2 via header), 8 USB 2.0 (2 rear, 6 via headers) M.2 NGFF connector M.2 Interface: PCI-E 3.0 x4 and SATA Form Factor: 2280, 22110 Key: M-Key Double Height Connector