External power supplies on marcmart

The power supply is the most important component in the unit of a desktop computer. A desktop power supply more power than the other components in a computer, and converts alternating current (AC) from an electrical outlet to DC which is used by the computer. Power supplies can be used inside or outside. External power supplies are important to the operation of virtually electronic devices. They convert high voltage AC to low voltage DC and change stablely, like MP3 players, camcorders, PDAs, mobile phones, digital cameras, IT equipment and laptops