1. Single Socket H4 (LGA 1151) supports Intel® Xeon® processor E-2100 / E-2200 series, 8th/9th Gen. Intel® Core i9/i7/i5/i3 Processors, Intel® Celeron®, Intel® Pentium® 2. Intel® C246 chipset 3. Up to 128GB* ECC/non-ECC UDIMM, up to DDR4-2666MHz; 4 DIMM slots 4. 2 PCI-E 3.0 x16 running at NA/16 or 8/8, 1 PCI-E 3.0 x4 slot, 1 PCI-E 3.0 x1 slot 5. 2 M. 2 (M-key, 2260/2280/22110), 1 U. 2 for optional expanded storages 6. 2 USB Type A & Type C, 4 USB 3.1 Gen1 (2 rear + 2 front), 2 USB 2.0 (front) 7. 1 HDMI 2.0a port, 1 DVI-Dport, 1 DP 1.2 port, 1 TPM header, 1 COM header 8. 4 Fixed 3.5", Opt. 4 2.5" drive bays, 2 Standard 5.25" drive bays, 1 Fixed 3.5" device bay 9. 500W Bronze Certified High Efficient Power Supply