Asus PRIME B840M-K-CSM

An Micro-ATX board on the B840M chipset, AM5 socket. Expansion includes 2 M.2 slots and 2 PCIe slots. Memory support covers 2 DDR5 slots up to 128GB total. Match the socket to your CPU generation first; chipset features second. Its $169.79 price tag places it squarely in mid-range territory.

Use the PlanMyPC system builder to verify it works alongside your other components and to watch live retailer pricing. Warranty coverage follows ASUS's standard policy — confirm regional terms on the listing. Every published spec is tabulated below, and compatibility against your current part list is checked automatically. Not sold on this particular motherboard? Browse the category listing to line it up against similarly priced alternatives.