? ATX Server Board with dual Xeon Scalable processors ? DDR4 2666 MHz RDIMM up to 192 GB (6 DIMMs) ? Four PCIe x16 slots (Gen3) and two PCIe x8 (Gen3) ? Intel? X557-AT2 dual 10GbE ports ? Eight SATA3 and one M.2 connectors (SATA / PCIe compatible) ? 0 ~ 40 °C ambient operation temperature range