Intel G41 ICH7, Support Socket 775, 800/1066/1333MHz,? 4GB MAX, 2 x DDR3 800/1066/1333Mhz,2 x SATA 2, 1x IDE , 1 PCI E 16x, 1 x PCI ,6x back USB2.0, 2 Front USB 2.0, Lan 10/100MB Ethernet, 1x PS2,1 x VGA, Lan jack, 3 x Flexible audio jacks, 1 x audio, 5.1 audio codec

Intel H81 LGA 1150,Support Intel 4^th Gen i3 /i5 / i7 series processor,2xDDR3 1333/1600 MHZ,1*VGA 1 x HDMI / 1*PCIE x 16 / 1*PCIE x 1 ,USB 2.0 / 6Channel HD Audio,10/100/1000MBPS LAN, 4x SATA 1x PS2, KB, MS Port, 1 x RJ45,1 x COM Port

Intel H55 LGA 1156,Support Intel i3 /i5 / i7 1st Generation processor,2xDDR3 1033/1066 MHZ,Intel Graphics,3 x Audio, 10/100/1000MB Ethernet,4x SATA 2, 1x PS2, 1 x KB, 1x VGA, 1x RJ45, 1 x LPT,1x Com port, PCI E x1, 2 PCI, 8 x Usb 2.0