Nowadays, the Type-C interface has basically unified all types of mobile devices. I believe one of the main reasons why everyone likes it is that it does not require blind plugging in different directions. This is many times more convenient than the previous generation micro USB interface. Micro USB is a portable version of the USB 2.0 standard. It was formulated by the USB Implementers Forum (USB-IF), a USB standardization organization in the United States, in 2007. Smartphones/tablets have all used micro USB after entering the Android era (except Apple). It is also widely used in digital products such as power banks, Bluetooth headsets, cameras, and driving recorders.
From the outside, the micro USB interface is asymmetrical in width and narrow at the top. At the same time, the plastic piece with the data pins is close to the longest bottom edge. It can be said to be a fool-proof design. We need to align the direction when charging/data transmission. It can be said to be a bit anti-human. If you charge before going to bed, you will probably be completely sleepy at this time. Therefore, the symmetrical Type-C interface can be plugged in front and back, which is very popular among people. As for whether it is USB2.0 or 3.0, it seems to be not that important anymore.
Although the Type-C interface has become mainstream, there are still many devices using micro USB interfaces in service. In order to improve the user experience, the micro USB plug that can be inserted reversibly was invented. It does not require any changes to the interface of the device. It only requires a new design of the plug to achieve the desired effect.
As seen from the picture above, the new micro USB has canceled the original asymmetric design, and the interface is horizontally symmetrical, which is almost the same as Type-C. It looks a bit like a crystal stone in the game, and even the spring leaf design that fixes the interface has been retained. At the same time, the pin part of the plug is designed with two slots, which truly realizes reversible plugging. I am afraid that USB-IF will never think that micro USB can be magically modified like this.
However, this kind of micro USB with blind plug design is convenient, but it only supports USB2.0 data transmission, and its support for fast charging is also very limited. In addition, Type-C has now dominated the world, so it is quite "random and eggless". But considering that some old equipment is still in service, this type of wire still has its place.
