power supply unit

Also known as PSU, ATX, ATX Power Supply, computer power supply, computer PSU, PC power supply unit, PC power supply, PC PSU

internal computer component that provides power to other components

Wikidata facts

Image: ATX PS downside2.jpg

Show 2 more facts

Commons category: Computer power supply units
Commons gallery: PSU

Sources (2)

via Wikidata · CC0

~40 min read

Article

An ATX power supply unit with top cover removed

A power supply unit (PSU) converts mains AC to low-voltage regulated DC power for the internal components of a desktop computer. Modern personal computers universally use switched-mode power supplies. Some power supplies have a manual switch for selecting input voltage, while others automatically adapt to the main voltage.