Power Supply Unit (PSU)

The Power Supply Unit (PSU) is a critical component that acts as the power hub for your entire computer. Its main job is to convert the high-voltage alternating current (AC) electricity from your wall outlet into the low-voltage direct current (DC) that every other component in your PC needs to operate. A reliable PSU ensures that your system receives stable, clean power, which is essential for both performance and the longevity of your hardware. Without a functioning PSU, no other component can work.