What is a Power Supply Unit (PSU)?

A Power Supply Unit (PSU) is an internal IT hardware component. Despite the name, Power Supply Units (PSU) do not supply systems with power - instead they convert it.
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Power Supply for Interface Unit - PSU AC Adapter IFU

Dell F4284 - 350W ATX Power Supply Unit (PSU) for Dell Dimension 4600 4700 8400 8000 GX280 - CPU Medics

Power: 500W. Cooling: 12cm Fan. Cooling System - 120mm sleeve bearing fan. Floppy Drive Connectors: 1. Safety: CE / FCC / UL / TUV. Power Good Signal

System Builder 500W PSU ATX Power Supply Unit 12cm Silent Fan for PC Computer

What is a Power Supply Unit (PSU)?

Redundant Power Supply Units (PSUs) - How They Work - An Overview

What Is PC's PSU (Power Supply Unit) & How It's Works? –

Maximum Power: 500W. For Envy 795-0003UR Desktop. For HP Z2 G4 800 880 G3 G4 G5. Repalce Part Number: L05757-800.

New Power Supply Unit PSU 500W For HP ENVY Desktop - 795-0003UR L05757-800 USA

Power Supply Unit Comparison, Buyers Guide

HP 0950-4270 - 150W Universal Power Supply Unit (PSU) - CPU Medics

Black computer power supply unit psu with messy cables on isolated white background Stock Photo - Alamy

Power Supply Unit (PSU) of Computer