Are computer power supply ratings the input or output wattage

After looking at some of the draws of the typical desktop computer system I am confused by power supply ratings which seem to be excessive. The big item in a desktop computer, the CPU typically ha

A reliable upgrade or replacement power supply for desktop PCs., This power supply offers an upgrade or replacement to a variety of Intel

300 Watt ATX Replacement Computer PC Power Supply

Can I Use a Higher Wattage Power Supply With My Laptop? - Ask Leo!

How to choose the best PC power supply

PSU - Test DC Output Voltage Windows 10 Forums

Wasting Money on Power Supplies: How Many Watts You Need for a PC PSU (2020)

Make sure this fits by entering your model number. HP Power Supply 503376-001 240W Pro 6000/6005/6200 Elite 8000/8100/8200 HP SPS: 508151-001

HP 508151-001 Power supply - Input voltage 100-240VAC, 50/60Hz, 240 watts output, standard rating - For Small Form Factor (SFF) PC

5 Things to Pay Attention to When Choosing A Power Supply

How to Find the Size of a Computer Power Supply

DC DC Power Supply: Types, Applications, Benefits, and Design

The SilverStone FX500 Flex-ATX 500W PSU Review: Small Power Supply With a Big Bark

Buy Value-5-Star - DC 12V 120W Dual PSU Computer PC Power Supply Module with 24Pin ATX/DC Input Cable Durable Online at Low Prices in India

How to calculate Power Supply Watts - Super User

5 Things to Pay Attention to When Choosing A Power Supply

Understanding DC Power Supplies – ITP Physical Computing