A standard announced in May 2007, with terminals mainly adopted for small-sized electronic devices since 2010. It is often called a micro five-pin. It has become a trend in type-B terminals as it has been adopted by many people with one Android OS. As a result, various terminals/telephony were unified, and other electronic devices (e.g. mini electric fans) will also have a virtuous cycle structure by introducing micro type-B-compliant terminals.
However, USB 2.0 Micro Type-B terminals are being used again, which are simple to say that the phrase is the best one in the field of caustic ratio.
Micro USB usually refers to this micro B-type terminal in a document that covers technical content.
USB wires and chargers could be purchased separately, but USB chargers were mainly used for MP3P charging 5V 0.5A. The five-pin charger became popular with the success of the Samsung Galaxy S.