Single Socket H4 (LGA 1151) supports Intel® Xeon® processor E-2100 / E-2200 series, 8th/9th Gen. Intel® Core™ i3 Processors, Intel® Celeron®, Intel® Pentium® Intel® C246 chipset Up to 128GB ECC UDIMM, up to DDR4-2666MHz; 4 DIMM slots 1 PCI-E 3.0 x16 slot 4 Hot-swap 3.5" drive bays M.2 Interface: 1 SATA/PCI-E 3.0 x4 and 1 PCI-E 3.0 x4 M.2 Form Factor: 2280/22110 M.2 Key: M-Key 2 GbE LAN ports, 1 dedicated IPMI LAN 2 USB 3.1 (rear), 2 USB 2.0 (rear) 1 VGA, 1 COM (header), 1 TPM header 400W High efficiency (96%)Redundant PSU; Platinum Level