Product Detail CPU: Socket 1156 Support Intel Core i7/i5/i3 Series Processor, QPI upto 6.4GT/s Chipset: Intel H55 Memory: 4x 240pin DDR3-2133(OC)/2000/1600/1333/1066 DIMMs, Unbuffered, Dual Channel, Upto 16GB Slots: 2x PCI-Express 2.0 x16 Slots(one run on x4; Support ATI CrossFireX Technology) IDE/SATA: 1x ATA-133 Channel; 6x SATA2 Ports Audio: Realtek ALC889 8-channel HD Audio Codec LAN: Realtek 8111DL Gigabit LAN Controller Ports: 12x USB 2.0 Ports (6 rear, 6 by header); 2x PS/2 Ports; 1x VGA Port; 1x HDMI Port; 1x RJ45 LAN port; Audio I/O jacks Power Connector: 1x 24pin main power connector, 1x 8pin CPU power connector . The "MSI H55-G43 LGA1156/Intel H55/CrossFireX/A and GbE/ATX Motherboard H55-G43 7638-01S" is best product for you. We recommended MSI H55-G43 LGA1156/Intel H55/CrossFireX/A and GbE/ATX Motherboard H55-G43 7638-01S