LGA775 socket for Intel Pentium 4/ Celeron D/ Pentium D processor FSB 1066/800/533 MHz Support Hyper-Threading Technology VIA P4M890 & VT8237R+ Integrated S3 UniChrome Pro 2D/3D Graphics Share memory : 64MB Single-channel DDR memory architecture 2 * 184-pin DDR DIMM socket support up to 2 GB 2 * 240-pin DDR2 DIMM socket support up to 4 GB Support DDR400/333 DDR SDRAM or DDR2 533/400 DDR2 SDRAM 1 * PCI Express x16 slot 1 * PCI Express x1 slot 2 * PCI slots 1 * CNR slot * Ultra DMA133/100/66 devices 2 * Serial ATA devices RAID0 & RAID1 configuration LAN: VIA VT6103L 10/100 Mbps Fast Ethernet PHY FORM FACTOR: Micro-ATX Size, 244mm*244mm