Lenovo ThinkBook 16p Gen 4

Type 21J8 Laptop, from 2023 6 hardware reports
Memory
Up to 32 GB
2 laptop-size slots
SSD and charger
Coming next
Checked from separate sources
Upgradable

Yes. 2 slots, up to 32 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
32 GB in two or more machines
Firmware says
64 GB maximum (often wrong, so we show what machines run)
How sure
6 of 6 reports show this layout
See 16 GB DDR5-5200 SO-DIMM on AmazonOpens an Amazon search for this exact spec.

Worked out from 6 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 16p Gen 4?

Yes. 2 slots, up to 32 GB seen working. It takes DDR5-5200 laptop-size sticks (SO-DIMM).

What type of RAM does the Lenovo ThinkBook 16p Gen 4 use?

DDR5-5200 laptop-size sticks (SO-DIMM, 262-pin).

How much RAM can the Lenovo ThinkBook 16p Gen 4 take?

Machines in the reports run up to 32 GB. The firmware reports a maximum of 64 GB, a figure that is often wrong.

Is this my laptop?

Check the label on the bottom. It should say ThinkBook 16p Gen 4, and the type code starts with 21J8.

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