Dell OptiPlex XE3

Desktop, from 2019 3 hardware reports
Memory
Up to 32 GB
4 full-size slots
SSD
1+ M.2
At least 1 M.2 SSD slot
Drives and power
Coming next
Checked from separate sources
Upgradable

Yes. 4 slots, up to 32 GB seen working.

It takes DDR4-2133 full-size sticks (DIMM).

Slots
4 DIMM slots
Type
DDR4-2133 288-pin DIMM
Most seen working
32 GB; one machine runs 32 GB
Firmware says
64 GB maximum
SSD slots
At least 1 M.2 SSD slot listed by the firmware
How sure
3 of 3 reports show this layout
See 8 GB DDR4-2133 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 Dell OptiPlex XE3?

Yes. 4 slots, up to 32 GB seen working. It takes DDR4-2133 full-size sticks (DIMM).

What type of RAM does the Dell OptiPlex XE3 use?

DDR4-2133 full-size sticks (DIMM, 288-pin).

Does the Dell OptiPlex XE3 have an M.2 SSD slot?

Yes. The firmware lists at least 1 M.2 SSD slot, 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 OptiPlex XE3.