ASUS ROG MAXIMUS Z690 HERO

Motherboard, from 2021 9 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 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; one machine runs 128 GB
Firmware says
256 GB maximum (often wrong, so we show what machines run)
How sure
9 of 9 reports show this layout
See 16 GB DDR5-4800 DIMM on AmazonOpens an Amazon search for this exact spec.

Worked out from 9 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 ROG MAXIMUS Z690 HERO?

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

What type of RAM does the ASUS ROG MAXIMUS Z690 HERO use?

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

How much RAM can the ASUS ROG MAXIMUS Z690 HERO take?

Machines in the reports run up to 64 GB, and one runs 128 GB. The firmware reports a maximum of 256 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 ROG MAXIMUS Z690 HERO.