MSI X99S XPOWER AC

An E-ATX board on the LGA2011-3 socket. Expansion covers 2 M.2 slots and 2 PCIe slots. Memory support covers 8 DDR4 slots up to 128GB total. Pick the board for its socket before anything else — chipset niceties come after.

Drop it into the PlanMyPC builder to check compatibility with the rest of your parts and compare current motherboard prices across retailers. MSI backs the product through its standard warranty channels; check the listing for region-specific terms. The full specification sheet below breaks out every listed detail, and the compatibility checker flags conflicts with parts already in your build. If this motherboard is not quite the right fit, the category page lists close alternatives at similar prices for a quick side-by-side comparison.