What problems does USB-C solve?

The faster data transfer speeds unlock the power of the VESA DisplayPort standard, which allows for delivery of full 4K Ultra HD video, and the ability to deliver 100 watts of power allows for quicker charging of mobile devices and laptops, as well as eliminating the need for separate AC adapters, power bricks, or different cable types. Additionally, the fully reversible design means that there is no right or wrong way to plug the cable into a device. So, no matter which end you grab or which side of the connector is "up", it plugs in the first time, every time. In short: Easier to use. Less clutter. No more power bricks