Asus P5W DH DELUXE/WIFI-AP GREEN Socket 775 Motherboard Intel Quad-core CPU Ready with Intel 975X +Intel ICH7R 1066/800MHz LGA775 socket for Intel Core2 Duo, Core2 Extreme Dual-channel DDR2 800/667/533 max 8GB Support ATI CrossFire graphics cards, Intel Matrix Storage technology Dual Gigabit LAN, Dolby Master Studio technology, ASUS Digital Home features and ASUS EZ-Backup