ASUS PRIME B560M-A AC

Motherboard, from 2021 8 hardware reports
Memory
Up to 24 GB
4 full-size slots
SSD slots
Coming next
Checked from separate sources
Upgradable

Yes. 4 slots, up to 24 GB seen working.

It takes DDR4-2666 full-size sticks (DIMM).

Slots
4 DIMM slots
Type
DDR4-2666 288-pin DIMM
Most seen working
24 GB in two or more machines; one machine runs 128 GB
Firmware says
64 GB maximum (often wrong, so we show what machines run)
How sure
8 of 8 reports show this layout
See 4 GB DDR4-2666 DIMM on AmazonOpens an Amazon search for this exact spec.

Worked out from 8 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 ASUS PRIME B560M-A AC?

Yes. 4 slots, up to 24 GB seen working. It takes DDR4-2666 full-size sticks (DIMM).

What type of RAM does the ASUS PRIME B560M-A AC use?

DDR4-2666 full-size sticks (DIMM, 288-pin).

How much RAM can the ASUS PRIME B560M-A AC take?

Machines in the reports run up to 24 GB, and one runs 128 GB. The firmware reports a maximum of 64 GB, a figure that is often wrong.

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 PRIME B560M-A AC.