Lenovo IdeaPad C340-14IWL

Type 81RL 2-in-1 laptop, from 2019 7 hardware reports
Memory
Up to 8 GB
2 laptop-size slots
SSD and charger
Coming next
Checked from separate sources
Upgradable

Yes. 2 slots, up to 8 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
8 GB in two or more machines; one machine runs 20 GB
Firmware says
32 GB maximum (often wrong, so we show what machines run)
How sure
7 of 7 reports show this layout
See 4 GB DDR4-2400 SO-DIMM on AmazonOpens an Amazon search for this exact spec.

Worked out from 7 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 C340-14IWL?

Yes. 2 slots, up to 8 GB seen working. It takes DDR4-2400 laptop-size sticks (SO-DIMM).

What type of RAM does the Lenovo IdeaPad C340-14IWL use?

DDR4-2400 laptop-size sticks (SO-DIMM, 260-pin).

How much RAM can the Lenovo IdeaPad C340-14IWL take?

Machines in the reports run up to 8 GB, and one runs 20 GB. The firmware reports a maximum of 32 GB, a figure that is often wrong.

Is this my laptop?

Check the label on the bottom. It should say IdeaPad C340-14IWL, and the type code starts with 81RL. Other type codes share this name: 81N4.

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