Micro-ATX (9.6" x 9.6") Supports Intel® Xeon® D-1700 processors Up to 6 DIMM slots (2DPC), supports DDR4 RDIMM, ECC/non-ECC UDIMM 1 PCIe4.0 x16 or 2 SlimSAS (PCIe4.0 x8) 1 PCIe3.0 x8 or 2 Mini-SAS HD (4 SATA 6Gb/s) Supports 1 M.2 (PCIe3.0 x4 or SATA 6Gb/s) Supports 1 M.2 (PCIe3.0 x4 or SATA 6Gb/s) or 4 SATA 7-pin Up to 17 SATA 6Gb/s 4 RJ45 (Up to 10GbE) by Intel® X557-AT4 4 SFP28 (10GbE) Remote Management (IPMI)