Like any computer it is possible to remove any component and replace it, however I don't think this is what you are asking. You are asking if it is designed to be removed easily and upgraded, the answer to that is no like every other all in one its pretty much a complete disassembly job with reseating and fitting cooling and thermal paste and sensors and a million other little niggles, you will also be vastly limited on compatible cards, that also fit in the unit. This si part of the all in one form factor limited upgradeability, for obvious reasons, they are all designed with very specific hardware that fits in a small space with custom cooling any changes will upset what is a delicate balance.