Supermicro Motherboard EATX (Extended ATX) DDR3 1600 Intel - LGA 2011 Motherboards X9DAX-ITF-O Dual LGA2011 Memory: 16x 240pin DDR3-1600/1333/1066/800 DIMM Slots, Support up to 512GB ECC/REG Memory or up to 128GB ECC/Non-ECC Unbuffered Memory Slots: 2x PCI-Express 3.0 x16 Slots, 3x PCI-Express 3.0 x8 Slots, 1x UIO PCI-Express 3.0 x8 Slot (for SMC UIO HBA) or 1x PCI-Express 2.0 x8 (runs at x4) SATA: 2x SATA3 Ports (via AHCI), 8x SATA2 Ports Ports: 4x USB 3.0 Ports (2 rear, 2 via header), 7x USB 2.0 Ports (4 rear, 2 via header, 1 Type A), 2x RJ45 LAN Ports, 1x RJ45 Dedicated IPMI LAN Port, Audio I/O Jacks Form Factor: Enhanced Extended ATX