USB
USB (an acronym for Universal Serial Bus) is a standard of communication that is commonly used for transferring data and powering devices. This standard introduced a new type of cable that was developed in the 1990s and has continuously evolved in the decades that followed. In this section, we outline the evolution of the USB cable and describe the types that exist today.
USB types
USB connectors come in several types: the default sizes (USB A, USB B and USB C), Mini USB type A and B and Micro USB A and B.
USB A has an elongated, rectangular form and can carry power and data. The USB A plug is used to provide a downstream connection to controllers or hubs.
USB B is narrower, squarer shaped and commonly used for connecting peripheral devices such as printers and scanners, or as an upstream port for USB hubs. USB B connectors are still in use today but slowly being phased out and replaced with USB C connectors and ports.
USB C is the newest USB interface, launched in 2014. With a narrower, more elongated shape than USB A, USB C has more pins enabling it to transfer a larger amount of power and data. USB typc C cable