MSI PRO B650M-A WIFI

Board code MS-7D77 Motherboard, from 2022 10 hardware reports

Memory

Up to 64 GB

4 full-size slots

SSD

1+ M.2

At least 1 M.2 SSD slot

SSD length

Coming next

Checked from separate sources

Upgradable

Yes. 4 slots, up to 64 GB seen working.

It takes DDR5-4800 full-size sticks (DIMM).

Slots: 4 DIMM slots
Type: DDR5-4800 288-pin DIMM
Most seen working: 64 GB in two or more machines
Firmware says: 128 GB maximum (often wrong, so we show what machines run)
SSD slots: At least 1 M.2 SSD slot listed by the firmware
How sure: 10 of 10 reports show this layout

See 16 GB DDR5-4800 DIMM on AmazonOpens an Amazon search for this exact spec.

Worked out from 10 hardware reports of this motherboard. Sources and method. Updated 9 Nov 2026.

4 full-size slots

Illustration

Questions

Can I upgrade the RAM in the MSI PRO B650M-A WIFI?

Yes. 4 slots, up to 64 GB seen working. It takes DDR5-4800 full-size sticks (DIMM).

What type of RAM does the MSI PRO B650M-A WIFI use?

DDR5-4800 full-size sticks (DIMM, 288-pin).

How much RAM can the MSI PRO B650M-A WIFI take?

Machines in the reports run up to 64 GB. The firmware reports a maximum of 128 GB, a figure that is often wrong.

Does the MSI PRO B650M-A WIFI have an M.2 SSD slot?

Yes. The firmware lists at least 1 M.2 SSD slot, in 5 reports. Some firmware leaves a slot out, so there may be more.

Is this my motherboard?

The model name is printed on the board, usually between the memory slots or near the CPU socket. In Windows, open System Information and look at "BaseBoard Product"; it should read PRO B650M-A WIFI or MS-7D77.