The PC power supply has been a standard of the junk box ... Most of them will probably be old and obsolete versions of little use with today’s motherboards, so there they sit.

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.

The motherboard takes a full-size 24-pin ATX power link from the power supply, which handles most functions on the PC. Still, ...

Computers use multiple DC voltages, and the power adapter is the external part of the power supply for a laptop. The additional DC voltages are created by internal circuits. Desktop computer power ...

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 ...

The best UPS (uninterruptible power supply) devices on this page ... prevent it from wasting energy when in use. Ideal for keeping mid and high-end computer systems safe, the UPS comes with ...