ASRock Fatal1ty X399 Professional Gaming

This is an ATX board on the X399 chipset, sTR4 socket. Memory support covers 8 DDR4 slots up to 128GB total. Expansion includes 2 M.2 slots and 2 PCIe slots. Match the socket to your CPU generation first; chipset features second.

Drop it into the PlanMyPC builder to check compatibility with the rest of your parts and compare current motherboard prices across retailers. Support and warranty service run through ASRock, with terms that vary by region. 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.