Gigabyte GA-G33M-S2L C2D LGA775 G33 DDR2 800 SATA2 PCIE LAN Audio mATX Motherboard Supports Intel Core 2 Extreme/Quad/Duo, Pentium Extreme/D, Pentium 4 Extreme, Celeron processor Supports 1333/1066/800 MHz FSB 4 x 240-pin DIMM, support max 8GB DDR2 800/667MHz 1 x PCI Express x16, 1 x PCI Express x1, 2 x PCI slot 4 x SATA 3.0 Gb/s ports 1 x IDE supporting 100/66/33 connector