Common power adapter interface types

March 31, 2023

We all know that there are different types of power adapters and different interfaces, so what are the common types of power adapter interfaces? Below, follow Xiaobian together to understand it!

1. Serial interface

Serial interface, referred to as serial port, that is, COM interface, is an extension interface using serial communication protocol. Serial ports were invented in

Around 1980, the data transmission rate is 115kbps to 230kbps, serial port is generally used to connect the mouse and external Modem and old

Cameras and tablet devices, some of the new motherboards have started to eliminate the interface.

2. Parallel interface

Parallel interface, also known as parallel interface, is an extension interface using parallel communication protocol. Parallel port data transmission

The rate is 8 times faster than the serial port. The data transmission rate of the standard parallel port is 1Mbps. It is generally used to connect printers, scanners and so on. So parallel mouth is also called print mouth.

3. USB interface

USB is the abbreviation of Universal Serial Bus, which means "universal serial bus" in Chinese. It is not a new bus standard, but an interface technology applied in the PC field. USB was introduced in late 1994 by a consortium of companies including Intel, Compaq, IBM, and Microsoft.

All devices that support USB 1.1 can be used directly on USB 2.0 ports without worrying about compatibility, and accessories like USB cables, plugs, and so on can be used directly. There are three types of USB interfaces:

- Type A: Generally used for PCS

- Type B: Usually used for USB devices

- Mini-USB: Generally used for digital cameras, digital camcorders, measuring instruments, and mobile hard disks

At present, the motherboard generally adopts the control chipset supporting USB function, and the motherboard is also installed with USB interface socket, and in addition to the backplane socket, the motherboard is also reserved with USB pins, which can be connected to the front of the chassis as a pre-USB interface for easy use (note, when wiring, please read the motherboard manual carefully and connect according to the diagram, Do not be connected to the wrong equipment damage)

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