MSI LGA1156/Intel H55/DDR3/A&GbE Micro ATX Motherboards H55M-E23 CPU: Socket 1156 Support Intel Core i7/i5/i3 Series Processor, QPI upto 6.4GT/s Chipset: Intel H55 Memory: 2x 240pin DDR3-1600(OC)/1333/1066 DIMMs, Unbuffered, Dual Channel, Max capacity upto 8GB SATA: 6x SATA2 Ports Audio: Realtek ALC887 8-channel HD Audio Codec LAN: Realtek 8111E PCI-Express Gigabit LAN Controller Ports: 10x USB 2.0 Ports (4 rear, 6 by header); 2x PS/2 Ports; 1x VGA Port; 1x HDMI Port; 1x DVI Port; 1x RJ45 LAN port; Audio I/O jacks Slots: 1x PCI-Express 2.0 x16 Slot; 2x PCI-Express 2.0 x1 Slots; 1x PCI slot(support 3.3V/5V PCI bus Interface) Power Connector: 1x 24pin main power connector, 1x 4pin CPU power connector