What is the power output of a USB port?


Quick Answer

Up to 100 watts of power can be provided by a USB 3.0 port, according to Ars Technica. This is enough power to run most laptops, computer monitors and even high-definition televisions.

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What is the power output of a USB port?
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Full Answer

USB ports provide users with a convenient and versatile way to operate peripheral devices. These ports allow for high-speed data exchange as well as access to a power source without the need for additional cables or connections. USB ports are most often used for connecting peripheral devices to laptop and desktop computer systems or for charging and accessing data that has been stored on external memory devices, such as cellular phones and other mobile devices.

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