Asus M4A98GTD EVO MB, AMD Socket AM3 ;PhenomII /AthlonII /Sempron 100 Series Processors, AMD 140W CPU Support, Supports 45nm CPU, NVIDIA nForce 980a SLI® Supports NVIDIA Clock Calibration(NVCC) function, 4 x DIMM, Max. 16 GB, DDR3 2000(O.C.)/1333/1066 ECC,Non-ECC,Un-buffered Memory, Dual Channel memory architecture, *AMD AM3 100 and 200 series CPU support up to DDR3 1066MHz, 2 x PCIe 2.0 x16 (dual @ x16 ), 2 x PCIe x1, 2 x PCI 2.2, Supports NVIDIA® SLI® Technology (dual @ x16), Integrated NVIDIA® GeForce® 8 series GPU for NVIDIA Hybrid SLI support only (not for graphics output), 1 xUltraDMA 133/100, 5 xSATA 3.0 Gb/s ports, NVIDIA® MediaShield RAID Support RAID 0,1,0+1,5,JBOD, 1x eSATA, 1x GBLan, up to 2x Firewire, up to 12x USB2.0, Core Unlocker, MemOK!, Phase Power Design, EPU, Stack Cool 3+, Fan Xpert, 1x PS/2 Keyboard Port, 1x PS/2 Mouse Port, ATX Form Factor