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

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

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Find 2 Connection, 12 VDC Input, 120 VAC Output, 40 Amp Input Rating, 600 Peak Wattage, Power Inverter at MSC Industrial Supply, serving the

2 Connection, 12 VDC Input, 120 VAC Output, 40 Amp Input Rating, 600 Peak Wattage, Power Inverter