Mini-ITX 6.7″ x 6.7″ Support AMD EPYC 3251 Processor, SoC Support 4 x DIMM slots, DDR4 ECC / UDIMM, RDIMM up to 2667 MT/s; 2DPC Support 1 x PCIe 3.0 x 16 Support up to 1 x OCulinks (PCIe 3.0 x4 or 4 x SATA III 6Gb/s) + 2 x SATA III 6.0Gb/s Support 1 x M.2 (PCIe3.0 x4 and SATA3 shared with SATA_4 port) up to 22110 form factor Support 2 x 10GLAN RJ45 by Intel X550-AT2 + 1 x Dedicated LAN IPMI Supports 12V DC or ATX Power Source