MSI PRO B660M-B

An Micro-ATX board on the B660M chipset, LGA1700 socket. Expansion includes 2 M.2 slots and 2 PCIe slots. Memory support covers 2 DDR5 slots up to 96GB total. Pick the board for its socket before anything else — chipset niceties come after.

At $73.99 it sits in the budget motherboard bracket. Use the PlanMyPC system builder to verify it works alongside your other components and to watch live retailer pricing. 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.