Northbridge Chipset: IntelŪ G33 Express Southbridge Chipset: IntelŪ ICH9 Memory Support: 4 X 2GB DDR2667/800 Slots: One PCI Express x16/One x4 PCI Express, /Two PCI Onboard 1-Channel IDE , 4 Serial ATA 300Gbps, SATA RAID 0,1, JBOD Onboard RealtekŪ ALC889A High-Def 8-channel audio OnboardRealtek RTL8111B Gigabit LAN Onboard IntelŪ Graphics G33