Lenovo ThinkBook 16 G6 IRL
Type 21KH Laptop, from 2023 17 hardware reports
Memory

Up to 64 GB
2 laptop-size slots
SSD and charger
Coming next
Checked from separate sources
Upgradable
Yes. 2 slots, up to 64 GB seen working.
It takes DDR5-5200 laptop-size sticks (SO-DIMM).
- Slots
- 2 SO-DIMM slots
- Type
- DDR5-5200 262-pin SO-DIMM
- Most seen working
- 64 GB in two or more machines
- Firmware says
- 32 GB maximum (often wrong, so we show what machines run)
- How sure
- 17 of 17 reports show this layout
See 32 GB DDR5-5200 SO-DIMM on AmazonOpens an Amazon search for this exact spec.
Worked out from 17 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 ThinkBook 16 G6 IRL?
Yes. 2 slots, up to 64 GB seen working. It takes DDR5-5200 laptop-size sticks (SO-DIMM).
What type of RAM does the Lenovo ThinkBook 16 G6 IRL use?
DDR5-5200 laptop-size sticks (SO-DIMM, 262-pin).
How much RAM can the Lenovo ThinkBook 16 G6 IRL take?
Machines in the reports run up to 64 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 ThinkBook 16 G6 IRL, and the type code starts with 21KH.
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