02
2023
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03
What are the characteristics of the USB interface?
Author:
Can be hot swapped. When using an external device, users do not need to shut down and restart the device, but instead plug in the USB directly while the computer is working.
1、 The USB interface mainly has the following characteristics:
1. Can be hot swapped. When using an external device, users do not need to shut down and restart the device, but instead plug in the USB directly while the computer is working.
2. Convenient to carry.
3. Rechargeable: The phone is connected to the computer via a USB cable to charge the phone.
4. USB data cable: When the phone is connected to the computer using a USB data cable, the USB shared network function on the phone can be used to provide temporary Internet access for the computer.
5. USB data cable: After connecting the phone to the computer, upload the massive photos on the phone to the computer hard disk.
6. USB wireless network card: When the computer cannot access the Internet, you can also buy a USB wireless network card to plug into the computer to access the Internet.
7. Mobile devices such as USB flash drives, mobile hard disks, and mobile optical drives can be plugged into the computer.
2、 USB interface classification
According to the characteristics of the supported devices, it is divided into USB Type A/B/C/Mini/Micro.
1. MiniUSB A/B: Larger than the micro USB interface, also known as mini USB.
Generally used for mobile devices such as digital cameras, digital video cameras, measuring instruments, and mobile hard disks.
2. Micro USB A/B interface: flat trapezoidal
The Micro-USB standard supports USB OTG functionality, which provides data transfer and charging capabilities.
It is a portable version of the USB 2.0 standard, smaller than the Mini USB interface.
Micro USB is currently mainly divided into Type A, Type B, and USB 3.0 Type B.
Among them, Micro USB A is the most widely used and is known by many as "Android port" or "Android cable" because Android phones use this interface.
Compared to Mini USB, it is smaller and thinner. Many mobile devices, including tablets, mobile hard drives, digital cameras, and cameras, have eliminated the Mini USB port and switched to Micro USB A.
3、USB Type A、USB Type B、TYPE C
USB Type A: This rectangular USB interface is commonly used on our computers. USB 2.0 is a black interface, and USB 3.0 is a blue interface.
USB type-C interface:
Oval shape, for smart phones, both front and back sides can be plugged in and out.
Is a new standard interface popular in recent years.
The USB Type C interface was introduced after USB 3.1. The highlights of this interface are its slimmer design, faster transmission speed (up to 10Gbps), and more robust power transmission (up to 100W).
The biggest feature of the Type-C dual sided pluggable interface is that it supports dual sided USB insertion, mainly targeting lighter, thinner, and slimmer devices (in the future, it may unify the interface of mobile tablets to replace the Micro USB interface).
The biggest feature of the Type-C dual sided pluggable interface is that it supports dual sided USB insertion, officially solving the worldwide problem of "USB never plugs correctly", with both sides being inserted casually.
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Office address: 10G, Ruijun Business Building, Shajing Central Road, Bao'an District, Shenzhen
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