Intel Xeon D1521 Processor Supports Dual channel DDR4 2133/1866 ECC DIMM max 64/128 GB Support 6 SATA3 by D1521 Supports 1x PCIe 3.0 x16, 1x PCIe 3.0 x8, 2 x M.2 slots Integrated IPMI 2.0 with KVM and Dedicated LAN (RTL8211E) Supports 2 x GLAN by Intel i350