USB 3.0, the most recent version of the USB data/power specification, currently offers much faster transfer speeds than USB 2.0. Compatible devices get speeds up to 5Gbps, and soon may see power transfer rates of up to 100 watts. The USB 3.0 spec is still evolving, and recently the group of companies responsible for it announced new details about USB...
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Future USB 3.0 cables will be powerful enough to charge laptops is a post from: Liliputing