Power over USB

USB could make power consumption more intelligent, but security concerns need to be addressed.

I’ve been reading about enhancements to the USB 3.0 standard that would allow a USB cable to provide up to 100 watts of power, nicely summarized in The Economist. 100 watts is more than enough to charge a laptop, and certainly enough to power other devices, such as LED lighting, televisions, and audio equipment. It could represent a…
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