ASUS Socket 1156/Intel H55/HDMI/A&GbE/Micro ATX Motherboard s P7H55-M/CSM CPU: Socket 1156 Support Intel Core i7/i5/i3/Pentium Processors Chipset: Intel H55 Express Memory: 4x 240pin DDR3-2200(O.C.)/2133/1866/1800/1600/1333/1066 DIMMs, Non-ECC/Unbuffered, Dual Channel, Upto 16GB Slots: 1x PCI-Express 2.0 x16 Slot; 2x PCI-Express 2.0 x1 Slot; 1x PCI Slots IDE/SATA: 1x ATA-133 Channel, 6x SATA2 Ports Video: Multi-VGA output support - HDMI and RGB ports, Maximum 1748MB shared memory Audio: Realtek ALC887 8-Channel High-Definition Audio CODEC LAN: Realtek 8111E Gigabit Ethernet Controller Ports: 12x USB 2.0 Ports(6 rear, 6 at mid-board); 1x PS/2 Port; 1x HDMI Port; 1x VGA Port; 1x Optical S/PDIF-Out Port; 1x RJ45 LAN Port; Audio I/O Jacks Power Connector: 1x 24pin Main Power; 1x 8pin CPU Power