Nowadays, there are three common mobile phone charging head interface methods in the sales market: the USBTypeC socket and MicroUSB interface of the Android system product application and the Lightning socket common to Apple products.

The MicroUSB interface is counted as a reduced version number of the USB2.0 specification, which is error-proof and blind insertion, so only single and double-sided insertion is suitable for data transmission. Only compatible with USB1.1 and USB2.0, the transfer rate is relatively slow. MicroUSB data cable is currently relatively common in mobile phones on the market. Most Android devices use MicroUSB data cable for battery charging and data transfer.

The USBTypeC socket is compatible with the USB3.1 specification, and the power plug can be inserted both on the front and back, and the transmission rate is fast. Nowadays, the sockets of Android phones are slowly changing from MicroUSB to TypeC adapter (data cable), TypeC adapter will also become the main future Android phone.

The Lightning socket is a special socket designed by the American Apple Company for their companies. From the beginning of iPhone5, almost all new iPhones and new iPads are equipped with Lightningapi interface. The Lightning socket has eight contact points on both sides, and the same as the USBTypeC socket, it also has the characteristics of being able to plug in both sides.