some knowledge of USB connector

In the current society, the USB connector is basically ubiquitous, and the USB interface has become the main standard for data transmission and communication between the PC and other electronic devices. This article mainly introduces some knowledge of USB connector.

Although the standard of the USB interface has existed for a long time, the USB connector standard has not really experienced many major versions. The common USB connector types are mainly divided into: USB Type-A interface connector, USB Type-B interface connector and USB Type-C interface connector are three categories.

USB Type-A interface connector introduction:

Although USB Type-A is currently the most common USB connector, it is gradually being phased out by the USB Type-C connector and will not be fully adopted in a few years. Typically, the USB 3.0 connector corresponds to a USB Type-A connector, typically a blue socket.

USB Type-B interface connector introduction:

USB Type-B connectors are used for large devices, the most common being printer devices. Since these are relatively large connectors, they are rarely seen in portable consumer devices.There are two major versions of USB Type-B. The first is a square USB Type-B connector, usually for USB 2.0 or lower. The second is a USB Type-B connector, usually for USB 3.0 or higher.

In addition, the compatibility of USB Type-B connectors of different specifications is very tricky. Although the USB2.0 Type-B connector can be backward compatible with USB 1.0, it may not be forward compatible with some USB Type-B ports of USB 3.0. The USB Type-B port for USB 3.0 was later modified to be a USB Type-B interface connector that is backward compatible with USB 2.0. In addition to the different form factors, USB Type-B connectors for USB 3.0 usually come with a blue plug-in.

USB Type-C interface connector introduction:

As the newest and best USB connector type, the USB Type-C connector is superior in all respects to all other USB connector types. It has more pins for data transfer, higher power transfer capacity, and is more durable, and its 24 pins can be reused for non-USB data transfer protocols, reducing the number of ports required for mobile devices. And the USB Type-C interface connector is also much smaller than the USB Type A connector, which means more ports can be mounted on the same surface area.

In addition, the USB Type-C connector enables multiple functions not possible with other USB connector types, allowing smart phones to enjoy faster transfer speeds now, and laptops can be powered via USB. The most important thing is that it is reversible, so you can insert it without checking which side is up.

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