ASRock Intel X79 ATX DDR3 1600 LGA 2011 Motherboards X79 EXTREME4 CPU: Socket 2011 Supports Intel Core i7 Processor; Support Hyper-Threading Technology; Support Intel Turbo Boost Technology 2.0; Support Untied Overclocking Technology Chipset: Intel X79 Memory: 4x DDR3-2400+(OC)/1600/1333/1066/800 DIMMs, Quad Channel, non-ECC, un-buffered, Max capacity up to 32GB Slots: 3x PCI-Express 3.0 x16 Slots(one run at x8, Support NVIDIA Quad/ 3-Way/ SLI & AMD Quad/ 3-Way/ CrossFireX), 2x PCI-Express 2.0 x1 Slot, 2x PCI Slots SATA: 4x SATA2 Ports, Support RAID 0/ 1/ 5/ 10; 5x SATA3 Ports(two Support RAID 0/ 1/ 5/ 10); 1x eSATA3 Port Ports: 12x USB 2.0 Ports (6 rear, 6 by headers); 4x USB 3.0 Ports (2 rear, 2 by headers); 2x PS/2 Ports; 1x eSATA3 Port; 2x IEEE 1394 Ports(1 rear, 1 by header); 1x Coaxial SPDIF Out; 1x Optical SPDIF Out; 1x RJ45 LAN Port; Audio I/O Jacks Power Connector: 1x 24pin main power, 1x 8pin CPU power Form Factor: ATX