Asus P5E64 WS Pro S775 X38 ATX DDR3

LGA775, Intel X38 / ICH9R Chipset, FSB 1600 / 1333 / 1066 / 800 MHz, Memory: 4 x DIMM, max. 8GB, DDR3 1800(O.C.)/1600(O.C.)/1333/1066/800 MHz, 4 x PCIe x16 ( x16, x16, x4, x4) (Dual PCIe 2.0 x 16), 1 x PCIe x