? EATX Server Board with dual Xeon Scalable processors ? DDR4 2666 MHz RDIMM up to 768 GB (24 DIMMs) ? 5 PCIe x16 (Gen3) and one PCIe x8 (Gen3) for three double-deck cards ? Intel? X557-AT2 dual 10GbE ports ? 10 SATA3 and six USB3.0 ports ? One M.2 2280 (SATA / PCIe compatible) ? 0 ~ 40 °C ambient operation temperature range