ASUS P8P67 WS Revolution B3 Server M/board, Intel® Socket 1155 for Intel® 2nd Generation Core™ i7 Processor/Core™ i5 Processor/Core™ i3 Processor, LGA1155 socket for Intel® next generation server processor, Support Intel® 32nm CPU, Supports Intel® Turbo Boost Technology 2.0, Intel® P67 Express Chipset ; Nvidia NF200*1, 4 x DIMM, Max. 32 GB, DDR3 2133(O.C.)*/1866(O.C.)/1600/1333/1066 Non-ECC,Un-buffered Memory, Dual Channel memory architecture, 2 x PCIe 2.0 x16 (@ x16 or x8), 2 x PCIe 2.0 x16 (@ x8), 3 x PCIe 2.0 x1 (@ x1), CUDA support:Up to 4 NVIDIA Tesla GPUs, Supports NVIDIA® Geforce 3-Way/2-Way SLI™ techonology, Supports ATI® CrossFireX™ technology, up to Quad CrossFireX™, Intel® P67 Express Chipset, 2 xSATA 6.0 Gb/s ports (gray), 4 xSATA 3.0 Gb/s ports (blue), Intel® Rapid Storage Technology Support RAID 0,1,5,10, Marvell® 9128 PCIe ATA6Gb/s controller, 2 xSATA Gb/s ports(navy blue) Support SATA RAID 0 and 1, 2x GbE LAN, 8 CH HD Audio, 2x Firewire, 2x USB3.0, up to 14x USB2.0, G.P. Diagnosis Card bundled, Quick Gate:2 vertical USB 2.0 on board, ASUS SASsaby series Cards support, ASUS WS Diag. LED, ASUS WS Heartbeat, 1x PS/2 Keyboard / Mouse Combo Port, ATX Form Factor