MSI PRO B550-P GEN3

This is an ATX board on the B550 chipset, AM4 socket. Memory support covers 4 DDR4 slots up to 128GB total. Expansion covers 2 M.2 slots and 2 PCIe slots. Match the socket to your CPU generation first; chipset features second.

At $149.00 it sits in the mid-range motherboard bracket. Use the PlanMyPC system builder to verify it works alongside your other components and to keep a running tally of the cost. 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.