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 ...

Whether you're buying a power supply unit for the first time or needing ... the highest level of efficiency for the money. 99.9% of computer users will not need an 80 Plus Titanium power brick ...