USB has become a ubiquitous power provider for cell phones, tablets and other mobile devices but the need for power has grown beyond current USB capabilities. The USB Power Delivery Specification (USB PD) provides more flexibility for power along with data over a single cable.
Device manufacturers can choose to enable higher voltage and current in order to deliver power up to 100W. Power delivery can now be switchable without changing cable direction, meaning a laptop could power a display or vice versa. USB PD can support all of your devices along with desktops and workstations.

USB PD group logos