Supermicro X11SPL-F Server Motherboard, ATX, Intel C621, LGA 3647, 1st & 2nd Gen Intel Xeon, 8x DIMM, 2x GBe LAN, 6x PCIe x8, 1x PCIe x4

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,
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