The historical process of mobile phone charging interface, what convenience has Type-C brought to people?

Mobile phones did not have a USB interface at the beginning, but with the popularity of audio and mobile phone cameras, mobile phones have the need to interact with PCs to transfer music and photos. However, at that time, there was no unified standard for the charging interface of mobile phones. The charging interfaces of various mobile phone brands were varied, with all styles, and the data cables were not compatible.



With the rise of Windows mobile phones and PDAs, the charging interface standard of mobile phones has finally been unified. This is the earliest USB interface, which is also used in card readers, digital cameras and other fields.


Mini USB


In the era of smart phones, with the gradual transition of mobile phones to lightweight, Mini USB undoubtedly restricts the reduction of the size of mobile phones, so Micro USB 2.0 came into being.


Micro USB


Compared with Mini USB, Micro USB 2.0 is much smaller in size. Until today, Micro USB 2.0 is still widely used in various devices, in addition to mobile phones, there are power banks, Bluetooth speakers, etc. However, it also has a big problem, that is, this flat trapezoidal interface often faces the embarrassment of reverse insertion, which not only wastes time, but also easily loses the life of the wire.


In addition, there is Micro USB 3.0. Compared with Micro USB 2.0, although the transmission speed will be faster, its interface is larger, it is inconvenient to plug and unplug, and the failure rate is also high, so it only exists on a few Samsung models. , and was gradually phased out.



So, the more convenient Type-C interface is here! Different from previous products, Type-C is unique as soon as it comes out. It changes the irregularity of both ends of the charging interface in the past, and achieves the goal of "plugging both front and back". This is also after the launch of Type-C. One of the reasons for its immediate popularity in the digital world.



The reason why Type-C is so widespread

The size of Type-C is very small, only 8.3*2.5mm, which is very suitable for increasingly miniaturized devices; under the blessing of the USB3.1 protocol, the theoretical memory bandwidth is 10Gbps; it can provide a maximum power output of 100W, and it can also be used through It realizes bidirectional power supply; It can also transmit audio and video signals and expand to a variety of audio and video output interfaces, such as HDMI, DVI, VGA and other interfaces, and even realize the expansion of 4K resolution.