Supermicro C9X299-PG300

Intel® 10th Generation Core™ i9 Extreme X-series, Intel® 7th Generation Core™ i7 X-series, Intel® 9th Generation Core™ i7 X-series, Intel® 9th Generation Core™ i9 X-series, Intel® Core™ i9 Extreme X-series Processor
Single Socket LGA-2066 (Socket R4) supported, CPU TDP support Up to 165W TDP
Intel® X299
256GB Unbuffered non-ECC UDIMM, DDR4-2933MHz, in 8 DIMM slots
4 PCIe 3.0 x16
***4xPCIe3.0 x16 Slots(8/NA/16/16 or 8/8/8/16(Core i9) or NA/4/8/16(Core i7)***
M.2 Interface: 2 PCIe 3.0 x4, RAID 0 & 1
M.2 Form Factor: 2280, 2280/22110
M.2 Key: M-Key
M-Key for SSD and Optane
U.2 Interface: 2 PCIe 3.0 x4
6 SATA3 (6 Gbps) ports; RAID 0,1,5,10
Single LAN with Intel® single Ethernet PHY i219V
Single LAN with Aquantia® AQC107 10G Ethernet Controller