Purism Librem 15 v4
Laptop, from 2019 5 hardware reports
Memory

Up to 32 GB
1 laptop-size slot
SSD and charger
Coming next
Checked from separate sources
Upgradable
Yes. One slot, up to 32 GB seen working.
It takes DDR4-2133 laptop-size sticks (SO-DIMM).
- Slots
- 1 SO-DIMM slot
- Type
- DDR4-2133 260-pin SO-DIMM
- Most seen working
- 32 GB in two or more machines
- Firmware says
- 32 GB maximum
- How sure
- 5 of 5 reports show this layout
See 32 GB DDR4-2133 SO-DIMM on AmazonOpens an Amazon search for this exact spec.
Worked out from 5 hardware reports of this laptop. Sources and method. Updated 9 Nov 2026.

1 laptop-size slot
Illustration Questions
Can I upgrade the RAM in the Purism Librem 15 v4?
Yes. One slot, up to 32 GB seen working. It takes DDR4-2133 laptop-size sticks (SO-DIMM).
What type of RAM does the Purism Librem 15 v4 use?
DDR4-2133 laptop-size sticks (SO-DIMM, 260-pin).
How much RAM can the Purism Librem 15 v4 take?
Machines in the reports run up to 32 GB. That matches the 32 GB maximum the firmware reports.
Is this my laptop?
Check the model name on the label underneath. It should read Librem 15 v4.