If your mobile phone can act as the erstwhile pager, PDA, gaming console, radio, camera, GPS device, among others, it is only logical to expect a single charger powering your laptops, tablets, phones and even external hard drives The next time you try to pack in a variety of chargers in your hand luggage before heading for the airport, you might realize that there is actually just one to be carried. The same port in your laptop which you use to charge that tablet and power the portable hard drive could now be used to charge the laptop itself, thanks to bidirectional support.
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