When you’re building a PC on a budget, every dollar counts. It’s tempting to spend the bulk of your money on the flashy parts like the graphics card or processor and save on the less glamorous components such as the power supply. However, the power supply unit (PSU) is arguably one of the most important parts of your system. It quietly powers every component, regulates voltage, and protects your investment from surges or unexpected failures. Choosing the wrong PSU might work in the short term, but it could lead to system instability, crashes, or even long-term damage.