? EATX Server Board with dual Xeon Scalable processors ? DDR4 2666 MHz RDIMM up to 384 GB (12 DIMMs) ? 5 PCIe x16 (Gen3), one PCIe x8 (Gen3), and one PCI slots ? Intel? X557-AT2 dual 10GbE ports ? 8 SATA3 and six USB3.0 ports ? 0 ~ 40 °C ambient operation temperature range