Upgrade or build a top notch socket 775 system using this ASRock 775i945GZ socket 775 mATX motherboard! It's based on the Intel 945GZ + Intel ICH7 chipset with support for Socket 775 for Intel Core 2 Duo* / Pentium D / Pentium 4 / Celeron D processors. Two DIMM sockets support up to 2 GB of RAM.Key features include Intel Graphics Media Accelerator 950, 7.1 CH Windows Vista Premium Level HD Audio (ALC888 Audio Codec), Realtek PCI LAN 8101L LAN, and Hybrid Booster - Safe Overclocking Technology. There is plenty of room for expansion with one HDMR slot, three PCI slots, one AGI Express slot, and two DIMM sockets. Order today!