Socket 478 for Intel?Pentium?4 1.4 ~ 2.8GHz ?Support FSB 800MHz/DDR 400 Intel?845PE/ICH4 chipset 184-pin DDR-DIMM x3, maximum 2GB ?4X AGP x1, CNR x1, PCI x6 C-Media 8738MX 6-channel audio ?Gigabit LAN controller/IEEE 1394 funciton (Optional) ?Support 2 serial ATA + 1 ATA133 (Optional) ATX Form Factor : 30.5cm x 24.5cm