HP Z2 SFF G4 Workstation
Desktop, from 2018 3 hardware reports
Memory
Up to 64 GB
4 full-size slots
SSD
2+ M.2
At least 2 M.2 SSD slots
Drives and power
Coming next
Checked from separate sources
Upgradable
Yes. 4 slots, up to 64 GB seen working.
It takes DDR4-2666 full-size sticks (DIMM).
- Slots
- 4 DIMM slots
- Type
- DDR4-2666 288-pin DIMM
- Most seen working
- 64 GB; one machine runs 64 GB
- Firmware says
- 64 GB maximum
- SSD slots
- At least 2 M.2 SSD slots listed by the firmware
- How sure
- 3 of 3 reports show this layout
See 16 GB DDR4-2666 DIMM on AmazonOpens an Amazon search for this exact spec.
Worked out from 3 hardware reports of this desktop. Sources and method. Updated 9 Nov 2026.
4 full-size slots
Illustration Questions
Can I upgrade the RAM in the HP Z2 SFF G4 Workstation?
Yes. 4 slots, up to 64 GB seen working. It takes DDR4-2666 full-size sticks (DIMM).
What type of RAM does the HP Z2 SFF G4 Workstation use?
DDR4-2666 full-size sticks (DIMM, 288-pin).
Does the HP Z2 SFF G4 Workstation have an M.2 SSD slot?
Yes. The firmware lists at least 2 M.2 SSD slots, in 3 reports. Some firmware leaves a slot out, so there may be more.
Is this my desktop?
Check the model name on the front or the label of the case. It should read Z2 SFF G4 Workstation.