ASUS VivoBook X509DA M509DA
Laptop, from 2019 16 hardware reports
Memory
Up to 20 GB
2 laptop-size slots
SSD and charger
Coming next
Checked from separate sources
Upgradable
Yes. 2 slots, up to 20 GB seen working.
It takes DDR4-2400 laptop-size sticks (SO-DIMM).
- Slots
- 2 SO-DIMM slots
- Type
- DDR4-2400 260-pin SO-DIMM
- Most seen working
- 20 GB in two or more machines
- Firmware says
- 32 GB maximum (often wrong, so we show what machines run)
- How sure
- 16 of 16 reports show this layout
See 8 GB DDR4-2400 SO-DIMM on AmazonOpens an Amazon search for this exact spec.
Worked out from 16 hardware reports of this laptop. Sources and method. Updated 9 Nov 2026.
2 laptop-size slots
Illustration Questions
Can I upgrade the RAM in the ASUS VivoBook X509DA M509DA?
Yes. 2 slots, up to 20 GB seen working. It takes DDR4-2400 laptop-size sticks (SO-DIMM).
What type of RAM does the ASUS VivoBook X509DA M509DA use?
DDR4-2400 laptop-size sticks (SO-DIMM, 260-pin).
How much RAM can the ASUS VivoBook X509DA M509DA take?
Machines in the reports run up to 20 GB. The firmware reports a maximum of 32 GB, a figure that is often wrong.
Is this my laptop?
Check the model name on the label underneath. It should read VivoBook X509DA M509DA.