What is a PSU: your PC’s power system explained

If you’re looking into building your own PC, you’ll undoubtedly come across a number of components you’re not familiar with if you’re used to buying prebuilt PCs, so asking “what is a PSU?” is probably one of the first questions a lot of folks are going to ask.This component is one of the few essential parts in a PC. Without a PSU there’s no way to power anything else in the system, so it is really the unsung champion

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