What's the name of the charging port line of the old Android?

According to Baidu Aigou.com, the initial charging port of Android phone is called Micro USB (Micro Universal Serial Bus), which is a digital signal transmission and power interface, and is jointly launched by more than 30 companies around the world. This charging interface quickly became popular after it was released in 2007, and became one of the most common interfaces in Qian Qian Thousand Yuan smart phones. Although the use of MicroUSB is gradually replaced by Type-C, it still plays an important role in the development history of smart phones.