The X299 chipset is Intel's flagship model for extreme desktop systems including gaming PCs and content creation workstations. With its LGA 2066 socket, this chipset supports Intel's most powerful desktop CPUs from the Skylake X and Kaby Lake X ranges. It supports quad-channel DDR4 memory, providing unparalled memory bandwidth. With up to 44 PCI-E 3.0 lanes available, these motherboards deliver masses of bandwidth for SLI and CrossFireX configurators, offering unrestricted performance in games and graphic intensive content creation applications. With heaps of USB 3.0, SATA 6Gb/s ports and overclocking features these motherboards are the ultimate platform for high-performance desktop PCs. These particular X299 models are ATX or larger for full-size desktop PCs.