Supermicro Intel H57 DDR3 1066 LGA 775 Motherboards X7DWT-B Dual Intel 64-bit Xeon Quad-Core or Dual-Core, with 1600/1333/1066 MHz FSB Intel 5400 (Seaburg) Chipset Up to 64GB DDR2 800*/667/533 SDRAM Fully Buffered DIMM (FB-DIMM) Intel (ESB2/Gilgal) 82563EB Dual-port Gigabit Ethernet Controller 4x SATA 3.0Gbps Ports via ESB2 Controller ATI ES1000 Graphics with 32 MB video memory