Dell Optiplex 7010
PC Dell Optiplex 7010 Tower Plus (i5 13500 8GB RAM DDR5/256GB SSD/ ...
CES 2020: Dell’s G5 15 SE Gaming Laptop Gets 8-Core Ryzen 4000 ...
The Dell G5 5000 Desktop has four RAM slots that support up to 128GB of 2933MHz dual-channel DDR4 memory. On the other hand, the Dell Optiplex 3080 Micro has two RAM slots that you can upgrade up to 64GB of 2933MHz dual-channel DDR4 memory.
Dell Optiplex 9020 [Desktop] Memory RAM Upgrades
Dell OptiPlex 9020 (Small Form Factor) RAM & SSD Upgrades.