PC power supplies provide the main voltage supply with AC power and convert it to low-voltage power for all the internal components. It's one of the most critical components of a PC, responsible for helping all the parts work to their maximum potential. With so many power supplies available, you'll need to pick the correct type of one that is perfect for you and your home with so many voltage supply options. Modern personal computers use switched-mode power supplies or manual switches. This section features an exhaustive list of available power supplies for your PC, allowing you to get the most impressive one for your CPU.