Dell OptiPlex 7090
Desktop, from 2021 7 hardware reports
Memory
Up to 32 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 32 GB seen working.
It takes DDR4-3200 full-size sticks (DIMM).
- Slots
- 4 DIMM slots
- Type
- DDR4-3200 288-pin DIMM
- Most seen working
- 32 GB in two or more machines
- Firmware says
- 128 GB maximum (often wrong, so we show what machines run)
- SSD slots
- At least 2 M.2 SSD slots listed by the firmware
- How sure
- 7 of 7 reports show this layout
See 8 GB DDR4-3200 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.
4 full-size slots
Illustration Questions
Can I upgrade the RAM in the Dell OptiPlex 7090?
Yes. 4 slots, up to 32 GB seen working. It takes DDR4-3200 full-size sticks (DIMM).
What type of RAM does the Dell OptiPlex 7090 use?
DDR4-3200 full-size sticks (DIMM, 288-pin).
How much RAM can the Dell OptiPlex 7090 take?
Machines in the reports run up to 32 GB. The firmware reports a maximum of 128 GB, a figure that is often wrong.
Does the Dell OptiPlex 7090 have an M.2 SSD slot?
Yes. The firmware lists at least 2 M.2 SSD slots, in 7 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 OptiPlex 7090.