Chosen Solution
Good afternoon. Is it possible to put a retina 4k display in this model?
Sadly no! Your system specs: 21.5” iMac 2.3 GHz i5 (Mid-2017) And the 4K mode: 21.5” iMac 3.0 GHz i5 (4K, Mid-2017) Whats important here is the graphics services yours only uses the on CPU Iris Plus Graphics 640 services Vs the 4K which Radeon Pro 555 which is a more powerful GPU.
