The best UPS (uninterruptible power supply) devices on this page are important ... and data could even be corrupted if a computer shuts down suddenly. That's where the best UPS come in, as if ...

A computer power supply converts AC into multiple DC voltages. For example, 12 volts is commonly used for drives, while 3.3v and 5v are used by the chips and other motherboard components.

That's top-shelf efficiency in an adorably small power supply. I recently used one of Thermaltake's Toughpower SFX unit in a small form factor build for PC Gamer, and I was impressed it managed ...

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 ...

A well-known property of switching mode power supplies (SMPS) like those used in any modern computer is that they’re more efficient at higher AC input voltages. Power supply efficiency at ...