Asus PRIME A520M-R-CSM

This is an Micro-ATX board on the A520M chipset, AM4 socket. Expansion covers 2 M.2 slots and 2 PCIe slots. Memory support covers 2 DDR4 slots up to 64GB total. Pick the board for its socket before anything else — chipset niceties come after.

Expect to pay around $99.99, which lands it among budget options. Drop it into the PlanMyPC builder to check compatibility with the rest of your parts and compare current motherboard prices across retailers. ASUS backs the product through its standard warranty channels; check the listing for region-specific terms. Scroll down for the complete spec table; the builder's compatibility checker will warn you about any conflicts with components you have already picked.