Introducing the ASUS Republic of Gamers (ROG) Rampage IV Formula motherboard: The ASUS Rampage IV Formula motherboard features the Intel X79 chipset supporting the Intel LGA2011 2nd Generation Intel Core i7 Processors. ASUS offers top-tier Republic of Gamers (ROG) platform-leading solution with the exclusive Extreme Engine Digi+ II technology capable of achieving most precise adjustment, enhanced performance and stability, and O.C. capacity for CPU & RAM. Additionally, users can adjust their system to be highly efficient and provide consistent power delivery to reach higher performance on the X79 platform with all Japan-made black metallic capacitors resulting in over 5X longer lifespan on components! Looking for value-added features X-Socket accommodates Sandy Bridge-E perfectly, so if you have a 1366 cooler already, theres no need to upgrade to another 2011 cooler. The motherboard is fully ready for true PCIe 3.0, built to be future-proof with PCIe 3.0 switching IC for NVIDIA SLI support and future PCIe 3.0 peripherals. With 4-Way AMD CrossFireX and NVIDIA SLI support, the ASUS Rampage IV Formula provides scalable graphics performance for the gaming and computer enthusiast or the graphical designer wanting to harness additional GPU Compute power in leading media applications. SupremeFX III delivers true-to-life HD audios for the quality sounds with innovative SupremeFX Shielding Technology to minimize any EMI to achieve absolute lossless audio quality for the ultimate gaming experience. Extreme gamers will appreciate the GameFirst feature which allows users to prioritize packets for games, thus maximizing the gaming experience. Onboard Intel Gigabit LAN features server-grade reliability with high-bandwidth networking for the best online experience when gaming or downloading high-definition content. USB BIOS Flashback allows users simplest BIOS update possible with USB device and a click of the button. ASUS award-winning ROG UEFI BIOS simplifies platform settings for users with an EZ tuning mode, while offering advanced users an easy to use graphical interface that offers unparalleled performance enhancement options with ROG theme and expanding friendly usability of UEFI BIOS. Socket LGA2011 for 2nd Generation Intel Core i7 Processors Intel X79 Express Chipset 4 x DIMM Slots, Quad-channel DDR3 2400(O.C.)/ 2200(O.C.)/2133(O.C.)/ 2000(O.C)/1800(O.C.)/1600/1333/1066 MHz Support 4 x PCIe3.0 x16 (red) slots, support x16; x16/x16; x16/x8/x16 and x16/x8/x8/x8 configurations AMD 4-Way CrossFireX and NVIDIA 4-Way SLI support 4 x SATA 6Gb/s port(s), red 4 x SATA 3Gb/s port(s), black 2 x Power eSATA 6Gb/s port(s) 6 x USB 3.0 port(s) (4 at back panel, 2 at mid-board ) 12 x USB 2.0 port(s) (6 ports at back panel, 1 for ROG Connect; 6 ports at mid-board) 1 x Optical S/PDIF Out 1 x Gigabit LAN featuring Intel Chipset SupremeFX III, built-in 8-Channel High Definition Audio CODEC