Product Detail CPU: Socket 1156 Support Intel Core i7/i5/i3 and Pentium G6950 Processor; Supports Intel Turbo Boost Technology; Support Hyper-Threading Technology; Supports EM64T CPU Chipset: Intel P55 Memory: 4x 240pin DDR3-2600+(OC)/2133(OC)/1866(OC)/1600/1333/1066 DIMMs, non-ECC, un-buffered, Dual Channel, Upto 16GB Slots: 2x PCI-Express x16 2.0 Slots(Support ATI CrossFireX/Quad CrossFireX Technology); 2x PCI-Express 2.0 x1 slots; 2x PCI Slots IDE/SATA: 1x ATA-133 Channel; 7x SATA2 Ports, Suppport RAID 0, 1, 5, 10, JBOD; 1x eSATA2 Port Audio: Realtek ALC892 7.1-Channel HD Audio CODEC LAN: Realtek RTL8111E PCI-Express x1 Gigabit Ethernet Controller Ports: 13x USB 2.0 Ports (7 rear, 6 by headers); 1x USB 3.0 Port; 2x PS/2 Ports; 1x eSATA2 Port; 1x Coaxial SPDIF Out Port; 1x Optical SPDIF Out Port; 1x RJ45 LAN Port; Audio I/O Jacks Power Connector: 1x 24pin Main Power, 1x 8pin CPU Power . The "ASRock Intel P55/ATI CrossFireX & Quad CrossFireX/USB3.0/A&GbE/ATX Motherboard P55 PRO/USB3" is best product for you. We recommended ASRock Intel P55/ATI CrossFireX & Quad CrossFireX/USB3.0/A&GbE/ATX Motherboard P55 PRO/USB3