The Dell OptiPlex 5060 SFF runs DDR4-2666 with a 32 GB limit

The Dell OptiPlex 5060 SFF runs DDR4-2666 with a 32 GB limit

Two SO-DIMM slots, DDR4 non-ECC at 2666 MHz, 32 GB ceiling via 2×16 GB. This is the same RAM config as the 3060 SFF — middle-of-the-road DDR4 speed and a conservative capacity ceiling. Adequate for the business desktop use case it was designed for, but nothing to write home about.