Lenovo IdeaPad S340-15IML

Type 81NA Laptop, from 2019 3 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 DDR4-2666 laptop-size sticks (SO-DIMM).

Slots
2 SO-DIMM slots
Type
DDR4-2666 260-pin SO-DIMM
Most seen working
20 GB; one machine runs 20 GB
Firmware says
32 GB maximum
How sure
3 of 3 reports show this layout
See 8 GB DDR4-2666 SO-DIMM on AmazonOpens an Amazon search for this exact spec.

Worked out from 3 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 Lenovo IdeaPad S340-15IML?

Yes. 2 slots, up to 20 GB seen working. It takes DDR4-2666 laptop-size sticks (SO-DIMM).

What type of RAM does the Lenovo IdeaPad S340-15IML use?

DDR4-2666 laptop-size sticks (SO-DIMM, 260-pin).

Is this my laptop?

Check the label on the bottom. It should say IdeaPad S340-15IML, and the type code starts with 81NA.

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