Lenovo ThinkPad X220 4291WF5

Laptop, from 2011 2 hardware reports
Memory
Up to 4 GB
2 laptop-size slots
SSD and charger
Coming next
Checked from separate sources

Only 2 machines reported so far, so this answer rests on few examples. Check the label or open the panel before you buy.

Depends on the configuration

It depends on the configuration.

The reports show more than one memory layout for this laptop. Check the label or the system information before you buy.

Slots
2 SO-DIMM slots
Type
DDR3-1333 204-pin SO-DIMM
Most seen working
4 GB; one machine runs 8 GB
Firmware says
16 GB maximum
How sure
1 of 2 reports show this layout
See 8 GB DDR3-1333 SO-DIMM on AmazonOpens an Amazon search for this exact spec.

Worked out from 2 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 ThinkPad X220 4291WF5?

It depends on the configuration: the reports show more than one memory layout for this laptop.

What type of RAM does the Lenovo ThinkPad X220 4291WF5 use?

DDR3-1333 laptop-size sticks (SO-DIMM, 204-pin).

Is this my laptop?

Check the model name on the label underneath. It should read ThinkPad X220 4291WF5.