RAM Upgrade
ASUS ROG Zephyrus M16 (GU604) Max RAM & Upgrade
The short answer
The maximum supported RAM for the ROG Zephyrus M16 (GU604) is 64 GB. Yes — the ROG Zephyrus M16 (GU604) has 2 user-accessible DDR5-4800 slots.
Last verified 10/6/2026 · Sources: ASUS (ROG), LaptopCompat (derived from processor and ports sources)
Specifications
- Memory type
- DDR5-4800
- Form factor
- SO-DIMM
- Total slots
- 2
- User-accessible slots
- 2
- Soldered memory
- 0 GB
- Maximum supported
- 64 GB
What to buy
Buy DDR5-4800 SO-DIMM modules; the laptop has 2 user-accessible slots.
Details
This maximum reflects 2 user-accessible DDR5-4800 slots, per manufacturer documentation.
Conditions
- Modules must match this laptop's DDR5-4800 form factor and generation.
Worth knowing before you buy
- A faster-rated module than this platform supports will still work, but will run at the laptop's supported speed rather than its advertised maximum.
- This is the manufacturer-documented maximum — some platforms have been community-tested beyond the officially configured maximum, but that isn't treated as verified here.
Also upgrading storage?
Frequently asked questions
Can you upgrade the RAM in the ASUS ROG Zephyrus M16 (GU604)?
The maximum supported RAM for the ROG Zephyrus M16 (GU604) is 64 GB. Yes — the ROG Zephyrus M16 (GU604) has 2 user-accessible DDR5-4800 slots.
How much RAM does the ASUS ROG Zephyrus M16 (GU604) support?
This maximum reflects 2 user-accessible DDR5-4800 slots, per manufacturer documentation.
Sources
- ASUS (ROG) — ROG Zephyrus M16 (2023) GU604 Tech Specs — verified 9/28/2026
- LaptopCompat (derived from processor and ports sources) — Estimated external displays for rog-zephyrus-m16-gu604 — verified 10/6/2026
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