ASRock B560M Pro4/ac

Motherboard, from 2021 2 hardware reports
Memory
Up to 32 GB
4 full-size slots
SSD
2+ M.2
At least 2 M.2 SSD slots
SSD length
Coming next
Checked from separate sources

Only 2 machines reported so far, so this answer rests on few examples. Check the label or open the panel before you buy.

Upgradable

Yes. 4 slots, up to 32 GB seen working.

It takes DDR4-2133 full-size sticks (DIMM).

Slots
4 DIMM slots
Type
DDR4-2133 288-pin DIMM
Most seen working
32 GB; one machine runs 32 GB
Firmware says
64 GB maximum
SSD slots
At least 2 M.2 SSD slots listed by the firmware
How sure
2 of 2 reports show this layout
See 8 GB DDR4-2133 DIMM on AmazonOpens an Amazon search for this exact spec.

Worked out from 2 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 ASRock B560M Pro4/ac?

Yes. 4 slots, up to 32 GB seen working. It takes DDR4-2133 full-size sticks (DIMM).

What type of RAM does the ASRock B560M Pro4/ac use?

DDR4-2133 full-size sticks (DIMM, 288-pin).

Does the ASRock B560M Pro4/ac have an M.2 SSD slot?

Yes. The firmware lists at least 2 M.2 SSD slots, in 2 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 B560M Pro4/ac.