We already use USB cords to charge smartphones and tablets but they could soon let us charge more high-powered devices as well. The Economist has written a lengthy report about the potential of USB cables to deliver an energy-efficient alternative to standard power cords once the new USB Power Delivery (PD) standard is ready for primetime next year. USB PD will give USB cables a major power boost of up to 100 watts and will let users power their laptops, low-voltage LED lightbulbs and even some desktop computers.
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The key to an energy-efficient future: USB everywhere