A good quality power supply is essential in any custom gaming PC. A component which is often overlooked, the PSU is the life-blood of your computer - a good source of power keeps everything running smoothly. Look for Bronze, Silver or even Gold rated power supplies to ensure that your PC will last for years to come. Modular power supplies can also help with cable management inside your PC, which in turn helps with airflow and cooling. Use the quick search and filtering options on the left to further refine your product selection.