Supermicro Motherboard ATX DDR3 1600 Intel - LGA 2011 Motherboards X9DRL-EF-O Dual LGA2011 Memory: 8x 240pin DDR3-1600/ 1333/ 1066/ 800 DIMM Slots, Supports up to 256GB ECC/REG Memory or up to 64GB ECC/Non-ECC UnbufferedMemory Slots: 2x PCI-Express 3.0 x8 Slots, 1x PCI-Express 2.0 x8 Slot (runs at x4), 1x PCI-Express 2.0 x1 Slot SATA: 2x SATA3 Ports; 4x SATA2 Ports Ports: 7x USB 2.0 Ports (4 rear,2 via header, 1 Type A), 1x VGA Port, 2x Serial Ports (1 rear, 1 via header), 2x RJ45 LAN Ports, 1x RJ45 Dedicated IPMI LAN Port Form Factor: ATX