ASUS P5B Motherboard Intel P965 chipset and supports DDR2 800MHz dual-channel memory architecture and Intel Quad-core processors in LGA775 AI NOS, AI Gear and AI Nap tools to adjust operation speed according to their specific needs Excellent for multi-tasking, multi-media and enthusiastic gamers with 1066/800 MHz FSB Onboard 8-channel HD audio enables high-quality 192KHz/24-bit audio output One PCI Express x16, six SATA 3Gb/s, and RTL8111B PCI-E Gb LAN