The power supply is probably best described as being the heart of the computer. It provides all of the other components in the computer with… well, power. It‟s responsible for converting AC electricity from the mains into the more usable, lower power DC before distributing it to the other components.
The most common type of power supply is the ATX power supply, which uses standardised connectors compatible with the vast majority of motherboards of any size. PSUs come in two varieties: Modular and Non-Modular. I‟ll be talking about both later.
Inside the Enermax Modu87+ 900W – One of the best PSUs you can buy!