What Is Power Supply Unit (PSU)?

September 11, 2023

A Power Supply Unit (PSU, also shortened to PS or P/S) is a computer hardware component that provides power to the rest of the machine. A PSU takes the 110-115V or 220-230V alternating current (AC) and transforms it to a low-voltage direct current (DC) that the other computer components can use.

Anastazija is an experienced content writer with knowledge and passion for cloud computing, information technology, and online security. At phoenixNAP, she focuses on answering burning questions about ensuring data robustness and security for all participants in the digital landscape.