Socket 939 for AMD Athlon 64, Athlon 64FX, Athlon 64X2 and Sempron processor ULi 1695 chipset (ULi M1695/ ULi M1567) For Socket 939 AMD Athlon 64X2, Athlon 64FX and Athlon 64, Sempron processors FSB 1000 MHz (2.0GT/s), Dual Channel, DDR400 Hyper-Transport Technology, AMD Cool'n'Quiet Technology Hybrid Booster - ASRock Safe Overclocking Technology PCI Express x16 slot PCI Express x1 slot AGP slot PCI E SATA2 controller on board, optimizing the support for SATA2 HDD Serial ATA 1.5Gb/s, RAID 0,1,JBOD 7.1channel Superior Quality Audio, 10/100 Ethernet LAN ASRock 8CH I/O: 4 ready-to-use USB2.0 ports, 7.1channel audio jack