PC Engines apu4
Desktop, from 2019 7 hardware reports
Memory

Up to 4 GB
1 laptop-size slot
Drives and power
Coming next
Checked from separate sources
Upgradable
Yes. One slot, up to 4 GB seen working.
It takes DDR3-1333 laptop-size sticks (SO-DIMM).
- Slots
- 1 SO-DIMM slot
- Type
- DDR3-1333 204-pin SO-DIMM
- Most seen working
- 4 GB in two or more machines
- Firmware says
- 4 GB maximum
- How sure
- 5 of 7 reports show this layout
See 4 GB DDR3-1333 SO-DIMM on AmazonOpens an Amazon search for this exact spec.
Worked out from 7 hardware reports of this desktop. Sources and method. Updated 9 Nov 2026.
1 laptop-size slot
Illustration Questions
Can I upgrade the RAM in the PC Engines apu4?
Yes. One slot, up to 4 GB seen working. It takes DDR3-1333 laptop-size sticks (SO-DIMM).
What type of RAM does the PC Engines apu4 use?
DDR3-1333 laptop-size sticks (SO-DIMM, 204-pin).
How much RAM can the PC Engines apu4 take?
Machines in the reports run up to 4 GB. That matches the 4 GB maximum the firmware reports.