Asus A88XM-A/USB 3.1

This is an Micro-ATX board on the FM2+ socket. Expansion includes 2 M.2 slots and 2 PCIe slots. Memory support covers 4 DDR4 slots up to 64GB 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 ASUS, with terms that vary by region. Scroll down for the complete spec table; the builder's compatibility checker will warn you about any conflicts with components you have already picked.