like those used in any modern computer is that they’re more efficient at higher AC input voltages. Power supply efficiency at different input voltages. (Credit: HP) This can be seen clearly when ...

A power supply for electronic devices. Also called an "AC adapter" or "charger," power adapters plug into a wall outlet and convert AC to a single DC voltage. Computers use multiple DC voltages ...

SFX power supplies are built specifically for small-form-factor PC cases, and they come with a much higher power density.