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.

Whether you're buying a power supply unit for the first time or needing to upgrade to a higher-wattage brick, you're going to want to pay close attention to the power supply ratings system. Every PSU ...

The Raspi manufacturer is launching a USB-C power supply with 45 watts of charging power. It is slightly more expensive than the previous 27-watt version.

A benchtop power supply is a key thing to have for any aspiring electronics hacker. While you can always buy one, plenty of us have old computer PSUs lying around that could do a fine job themselves.