Supermicro ATX DDR4 LGA 2011 Motherboards X10SRI-F-O Intel C612 chipset Up to 512GB ECC DDR4 2133MHz LRDIMM; 8x DIMM sockets 2 PCI-E 3.0 x8, 1 PCI-E 3.0 x4 (in x8), 1 PCI-E 3.0 x16, 1 PCI-E 2.0 x2 (in x8), 1 PCI-E 2.0 x4 (in x8) CPU: LGA2011 Memory: 8x 284pin DDR4-2133/ 1866/ 1600/ 1333 DIMM Slots, Supports up to 512GB ECC Load Reduced Memory or up to 256GB ECC/REG Memory Slots: 1x PCI-Express 3.0 x16 Slot, 3x PCI-Express 3.0 x8 Slots (one runs at x4), 2x PCI-Express 2.0 x8 Slot (one runs at x4, one runs at x2) SATA: 10x SATA3 Ports Form Factor: ATX