A power supply for electronic devices. Also called an "AC adapter" or "charger," power adapters plug into a wall outlet and convert AC to a single DC voltage. Computers use multiple DC voltages ...

The Power Supply Unit, often referred to as the PSU, is the part of your PC that supplies power to all components. It ...

Whether you're buying a power supply unit for the first time or needing to upgrade to a higher-wattage brick, you're going to want to pay close attention to the power supply ratings system.