Socket 939 for AMD Athlon™ 64FX / 64X2 / 64 processors SiS756 chipset * For advanced Socket 939 AMD Athlon™64X2, Athlon 64FX, Athlon 64 processors * FSB 1000 MHz (2.0GT/s), Hyper-Transport Technology, Cool'n'Quiet Technology * Dual Channel DDR400/333/266 memory, 4 DIMM slots * PCI Express x16 slot for VGA interface * PCI Express x1 slot * Hybrid Booster - ASRock Safe Overclocking Technology * SerialATA 1.5Gb/s, RAID 0,1,JBOD, SATA HDD Hotplug * 7.1 channel Audio, 10/100 Ethernet LAN * ASRock 8CH I/O: 4 ready-to-use USB2.0 ports, 7.1channel audio jack