Asus Z8NA-D6C Intel Tylesburg 24D LGA1366 ATX 48GB DDR3 Motherboard CPU: Dual Socket LGA1366, QPI upto 6.4GT/s; SupportsQuad-Core Intel Xeon X5500 Series (95W) Quad-Core Intel Xeon E5500 Series (80W) Quad-Core Intel Xeon L5500 Series (60W/38W) Chipset: Intel 5500 & ICH10R Memory:6x DDR3-1333/1066/800 DIMM,Triple Channel,Reg/Unbuffered, ECC/non ECC , Max Capacity 48GB(RDIMM)/24GB(UDIMM) Slots: 1x PCI-Express x16 Slot(Support PCI-Express 2.0); 2x PCI-Express x8 Slot; 1x MIO Slot for Audio card; 1x PCI 32bit/33 MHz Slot SATA: 6x SATA2 Ports, Support RAID 0, 1, 10, 5 Video: Aspeed AST2050, w/8MB DDR VRAM LAN: 2x Intel 82574L Fast Ethernet Controller Ports:4x USB 2.0 Ports (2 rear,1 by header,1 Type A USB connector);2x PS/2 Ports;2x Serial Ports (1 rear, 1 by header);1x VGA Port;2x RJ45 LAN Ports Power Connector: 24pin ATX & SSI power connector; 1x 8pin ATX & SSI 12V power connector