System76 Leopard WS
Desktop, from 2016 2 hardware reports
Memory
Up to 128 GB
8 full-size slots
Drives and power
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.
Upgradable
Yes. 8 slots, up to 128 GB seen working.
It takes DDR4-2666 full-size sticks (DIMM).
- Slots
- 8 DIMM slots
- Type
- DDR4-2666 288-pin DIMM
- Most seen working
- 128 GB; one machine runs 128 GB
- Firmware says
- 1536 GB maximum
- How sure
- 2 of 2 reports show this layout
See 16 GB DDR4-2666 DIMM on AmazonOpens an Amazon search for this exact spec.
Worked out from 2 hardware reports of this desktop. Sources and method. Updated 9 Nov 2026.
8 full-size slots
Illustration Questions
Can I upgrade the RAM in the System76 Leopard WS?
Yes. 8 slots, up to 128 GB seen working. It takes DDR4-2666 full-size sticks (DIMM).
What type of RAM does the System76 Leopard WS use?
DDR4-2666 full-size sticks (DIMM, 288-pin).
Is this my desktop?
Check the model name on the front or the label of the case. It should read Leopard WS.