FeaturesSingle socket LGA775, support Intel Pentium4 with 533/800 MHz FSB, up to 3.8GHz DDR2 240-pin DIMM x 4, support Dual Channel DDR2 400/533 MHz up to 4GB RC8257E PCI Express Gigabit Ethernet LAN x 2 SATA x 4, USB 2.0 x 6, COM port x 2 Optional CF socket x 1 RoHS Compliant