Legacy USB Type-A and Micro B cables traditionally had assigned source and device form factors. USB-C (also known as USB Type-C) introduces flexibility so the cable ends can be used interchangeably and in any orientation.
USB-C with power delivery (PD) allows systems to negotiate up to 100W of power, far exceeding the previous limitation of 7.5W. The data rates for the USB-C PD standard have also migrated to allow up to 40Gbps. Read this document from ON Semiconductor to learn about the company’s USB-C Suite of Solutions for AC-DC and DC-DC.