MSI PRO B650M-A WiFi AMD motherboard

Socket AM5 DDR5 foundation

The MSI PRO B650M-A WiFi motherboard pairs the AMD B650 chipset with a Socket AM5 platform ready for Ryzen 7000 and 8000 series desktop processors. Dual-channel DDR5 support scales from 4800 MHz up to 6400 MHz when overclocked, with a maximum capacity of 256 GB across four slots.

Extended PCIe lane distribution under load

Two full-size PCIe x16 slots and one x1 slot share bandwidth dynamically depending on the installed CPU. Ryzen 7000 series chips run the primary slot at x16 and the secondary at x4, while 8700G and 8600G processors split the lanes to x8 and x4, and the 8500G limits both to x4. The single x1 slot remains available for additional expansion cards.

256 GB dual-channel DDR5 ceiling

Maximum supported memory is 256 GB of dual-channel DDR5, setting the hard limit for workstation or content-creation builds that need large datasets in RAM. Four DIMM slots populate to this ceiling using standard unbuffered modules at speeds up to 6400 MHz OC.