Asus P9X79WS [High-End Workstation Motherboard]
8 x DDR3 Slots (1066MHz-2400MHz) Up To 64GB
4 x SATA3 Ports, 4 x SATA2 Ports
6 x PCIe 3.0 x16 Slots
4 x USB 3.0 Ports, 13 x USB 2.0 Ports
Supports Quad AMD CrossFireX & nVidia SLI
Dual On-Board Gigabit LAN