ASRock X99 OC Formula/3.1

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. 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. The category page surfaces comparable models near the same price, which makes shortlisting against this motherboard straightforward.