There's no doubt about it. As we noted in an earlier post, Apple's new 27-inch iMac 5K for 2020 is a beast of a machine. With 10-core availability, all Solid State Drives, True Tone Retina display with a nano-texture glass option, faster GPU, T2 chip security, and up to 128 GB of RAM, you may finally be ready to make the leap into a new machine. It's completely understandable. But before you do, do yourself a favor and consider the one thing that is still user-upgradable after your purchase: the memory.