For many users who have purchased Android phones, the charging interface is an important part of their attention. In the past, Android phones generally used Micro USB, but now mobile phones that support reversible USB Type-c interfaces have become popular. In addition to the selling point of the Type-c interface, some manufacturers also advertise that they use the USB3.0 interface. Many people will wonder, are USB3.0 and USB Type-c the same thing? Is there any difference between Type-C and Micro USB except in appearance?
To understand the difference between the two, we need to start from the industry standards and interface types!
Industry standards actually refer to the transmission rate of USB, and the transmission speed of each different USB version is also different!
The first generation of USB version, USB1.0, launched in 1996, has a theoretical maximum transmission rate of only 1.5Mbps, which is very slow, and it supports very few devices at the time, with a maximum output current of 5V/500mA.
In 2000, USB2.0 was born, and its theoretical maximum transmission rate reached 480Mbps. In addition, USB devices have been widely popularized due to their advantages such as easy portability, unified standards and support for hot plugging. However, the maximum output current is still 5V/500mA.
The latest USB3.0 standard was launched around 2008, and its theoretical maximum transmission rate reached 5Gbps, which was a qualitative leap in speed. Its maximum output current reached 5V/900mA, and then the USB3.1 standard was born, with a theoretical speed of 10Gbps, which is twice that of USB 3.0, and the maximum output current reached 20V/5A.
After talking about the speed, let's talk about the types of interfaces. From the appearance classification, they can be divided into five categories: Type-A interface, Type-B interface, Mini USB, Micro USB, and Type-C.
Type-A interface is commonly used in peripheral products such as mice and keyboards, and does not support any front or back plugging!
Type-B interface is commonly used in external devices such as printers and monitors. There are two types of Type-B, standard version and 3.0 version.
Mini USB is common in previous mobile phones, such as previous Nokia phones, which all use this interface, as well as card readers, MP3 and other devices.
Micro USB is also relatively common, and many Android phones use this interface.
Type-C is a brand new interface that supports forward and reverse plugging, has more pins, and can support up to USB 3.1. It is common in new mobile phones released in the past two years.
The USB organization does not force what interface must use what specification. Sometimes the data cable of the Type-C interface you use may use the USB2.0 standard, and its transmission speed is really not as fast as the Micro USB data cable that uses the USB3.0 standard.
After reading this, everyone should understand it, right?