MSI LGA1156/Intel H55/4DDR3-2133(OC)/ATI CrossFire /GbE/HDMI/DVI/VGA/1394/eSATA ATX Motherboard H55-GD65 Socket 1156 Support Intel Core i7/ i5/ i3 Series Processor, QPI upto 6.4GT/s Intel H55 Chipset 4x 240pin DDR3-2133(OC)/2000/1600/1333/1066 DIMMs, Dual Channel, Upto 16 GB Memory 2x PCI-Express 2.0 x16 Slots; 2x PCI-Express 2.0 x1 Slots; 2x PCI slots IDE/SATA- 1x ATA-133 Channel; 7x SATA2 Ports; 1x eSATA Port