SUPERMICRO MBD-X10DRL-I ATX Server Motherboard Dual LGA 2011 R3 Intel C612 CPU Type: Intel Xeon processor E5-2600 v3 family (up to 145W TDP **) ** Motherboard supports this maximum TDP. Please verify your system can thermally support. System Bus: QPI up to 9.6 GT/s Number of DDR4 Slots: 8 x 288-pin DDR4 Standard: 2133/1866/1600MHz ECC DDR4 SDRAM 72-bit Maximum Memory Supported: Up to 512GB ECC LRDIMM, 256GB ECC RDIMM ECC Supported: Yes Registered: Yes PCI Express 3.0 x16: 1