8 x DIMM, max up to 64GB, quad-channel DDR3 1866/1600/1333/1066 Support 2 x PCIe 3.0 x16 slots (@ dual x16/x16) with NVIDIA Quad-GPU SLI and Quad-GPU CrossFireX support; 1 x PCIe 3.0 x16 (@ x8) 2 x PCIe 2.0 x1 1 PCI Thermal Armor Technology - Improves air flow with an innovative vent design and integrated turbo fan on two focal points TUF Capacitors, Chokes and MOSFETS - Certified by military standard to ensure ultimate durability ASUS SSD Caching - One click away from experiencing the benefits of both SSD and HDD without any capacity limitation DIGI Power Control - Flexible precise adjustments for System Stability, High Power Efficiency and Improved Performance Scaling on both CPU & RAM Thermal Radar - Real-time thermal detection for a better cooling solution 8-Channel HD audio CODEC Introducing the latest motherboard from the award-winning TUF (The Ultimate Force) series - the SABERTOOTH X79. This board features the Intel X79 chipset supporting the Intel LGA2011 2nd Generation Intel Core i7 Processors. ASUS 8-DIMM Design provides maximum performance and versatility of memory configuration. ASUS SSD Caching which offers similar functionality as Intel SRT with additional features. There is no SSD capacity limitation, and it is as easy as one-click away.