There is a lot of buzz about the future of USB. USB 3.0 brought us speeds of up to 10 times faster than USB 2.0 and a reversible plug is in the works so we’re not always trying to connect our devices upside-down. However, what might be the most groundbreaking news about USB could be USB PD, a new standard that will allow you to charge transmit massive amounts of power. Enough, even, to charge your laptop.
The new USB PD standard means that future USB cables will carry up to 100 watts of power, enough to charge a laptop directly, as well as things like tablets and phones much, much faster. Because it can handle both power and data, USB with the new standard will be able to figure out exactly how much voltage you need, based on five "profiles" (10W, 18W, 36W, 60W and 100W). If you’re charging your smartphone, it will know to use less voltage. For your laptop, it will know to use more.
So why is this such a big deal? USB power will be more efficient, making it less expensive (as well as greener). It’s also safer than typical power adapters, and it’s more convenient: a USB cable is easier to carry around. It also may get rid of those proprietary chargers and connectors that certain companies (Apple) force on us. Imagine just needing one cord for all of your devices. But most importantly? USB is already used everywhere, from office buildings to residential homes. USB is basically the standard for charging mobile electronic devices, so why not make it do more?
Expect the first examples of USB PD sometime in 2014, with worldwide implementation by 2015.
Via Next Big Future