ASUS Pro WS X570-ACE

Motherboard, from 2019 29 hardware reports
Memory
Up to 64 GB
4 full-size slots
SSD slots
Coming next
Checked from separate sources
Upgradable

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

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

Slots
4 DIMM slots
Type
DDR4-2666 288-pin DIMM
Most seen working
64 GB in two or more machines; one machine runs 128 GB
Firmware says
128 GB maximum (often wrong, so we show what machines run)
How sure
29 of 29 reports show this layout
See 16 GB DDR4-2666 DIMM on AmazonOpens an Amazon search for this exact spec.

Worked out from 29 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 Pro WS X570-ACE?

Yes. 4 slots, up to 64 GB seen working. It takes DDR4-2666 full-size sticks (DIMM).

What type of RAM does the ASUS Pro WS X570-ACE use?

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

How much RAM can the ASUS Pro WS X570-ACE take?

Machines in the reports run up to 64 GB, and one runs 128 GB. The firmware reports a maximum of 128 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 Pro WS X570-ACE.