Quote (zell1luk @ Mar 27 2019 11:48am)
Your question has been answered. Apple is well known for not letting hardware work on its systems purely because they want you to pay more, and for no compatibility reasons. If you dont believe me, go look Louis rossman on youtube, he talks all about their shitty business ethics with plenty of proof.
I have reasons to have a MacOS. So I cannot change that. If the RAM 21300 will be compatible with 21333 is the question. If you know for sure that it will not be, then I will have to consider options to spend more on the RAM

But not buying the iMac is not an option right now