ASUS ZenBook UX431FA
Laptop, from 2019 9 hardware reports
Memory
Soldered
No slot to add more
SSD and charger
Coming next
Checked from separate sources
Not upgradable
No. The memory is soldered to the board.
8 or 16 GB is built in and there is no slot to add more.
- Free slots
- None
- Type
- LPDDR3-2133
- Soldered
- 8 GB or 16 GB, depending on the configuration
- Firmware says
- 8 GB maximum
- How sure
- 9 of 9 reports show this layout
Worked out from 9 hardware reports of this laptop. Sources and method. Updated 9 Nov 2026.
All soldered
Illustration Questions
Can I upgrade the RAM in the ASUS ZenBook UX431FA?
No. The memory is soldered to the board. 8 or 16 GB is built in and there is no slot to add more.
What type of RAM does the ASUS ZenBook UX431FA use?
LPDDR3-2133 memory soldered to the board.
How much RAM can the ASUS ZenBook UX431FA take?
Machines in the reports run up to 8 GB, and one runs 16 GB. That matches the 8 GB maximum the firmware reports.
Is this my laptop?
Check the model name on the label underneath. It should read ZenBook UX431FA.