TUF Fortifier, SafeSlot & VGA Holder - Reinforced backplate adds structural rigidity, whileSafeSlot-fortified PCIe and TUF VGA holder support the weight of heavy graphics cards. Thermal Armor & M.2 Heatsink - Thermal armor directs cool air towards vital components while the 40mm fan and M.2 heatsink help reduce SSD temperatures by up to 25° C. Intel LGA 2066 ATX motherboard with Thermal Armor, DDR4 4133MHz (OC), dual M.2, Intel VROC support, Intel Optane memory ready, dual Intel Gigabit LAN, front USB 3.1 Gen 2 Type-C