ASUS Z8NA-D6 M/board - Intel Xeon 5500, Dual 1366 Socket , Memory: 6 x(3-channel per CPU, 3-DIMM per CPU) Capacity: Maximum up to 48GB (RDIMM), Maximum up to 24GB (UDIMM), Memory Type: DDR3 800/1066/1333 Reg DIMM/ Unbuffered DIMM with ECC/ non ECC, Memory Size: 1GB 2GB 4GB 8GB (RDIMM); 1GB 2GB 4GB (UDIMM), 1 x PCI-E x16, 2 x PCI-E x8, 1 * MIO Slot for Audio card, 6 x SATAII, RAID, Int. VGA: Aspeed AST2050 8MB , GbE LAN, ATX (12" x 9.6")<br /> <br /> * Optional PIKE Card for SAS/SATA RAID (1068E, 1078, 6480)<br /> * Optional KVM-over-IP support (ASMB4-iKVM)<br /> * Optional Sound (MIO-AUDIO-888)