Dell OptiPlex 3020
Desktop, from 2013 126 hardware reports
Memory

Up to 16 GB
2 full-size slots
SSD, drives and power
Coming next
Checked from separate sources
Upgradable
Yes. 2 slots, up to 16 GB seen working.
It takes DDR3-1600 full-size sticks (DIMM).
- Slots
- 2 DIMM slots
- Type
- DDR3-1600 240-pin DIMM
- Most seen working
- 16 GB in two or more machines
- Firmware says
- 16 GB maximum
- How sure
- 126 of 126 reports show this layout
See 8 GB DDR3-1600 DIMM on AmazonOpens an Amazon search for this exact spec.
From 126 reports of this machine in the Linux Hardware Database (CC BY 4.0). Updated 9 Nov 2026.

2 full-size slots
Illustration Questions
Can I upgrade the RAM in the Dell OptiPlex 3020?
Yes. 2 slots, up to 16 GB seen working. It takes DDR3-1600 full-size sticks (DIMM).
What type of RAM does the Dell OptiPlex 3020 use?
DDR3-1600 full-size sticks (DIMM, 240-pin).
How much RAM can the Dell OptiPlex 3020 take?
Machines in the reports run up to 16 GB. That matches the 16 GB maximum the firmware reports.
Is this my desktop?
Check the model name on the front or the label of the case. It should read OptiPlex 3020.