To Know All USB Types Overview

To Know all USB Types Overview – USB plugs come in all shapes and sizes. Time for an overview. Thanks to usb we can easily connect all kinds of devices to the computer or laptop. Think of the mouse and keyboard, but also the USB stick and the external hard drive. And almost all tablets and smartphones use a USB cable as a charging option.

USB / Universal Serial Bus

In full usb stands for ‘Universal Serial Bus’. The name includes the ports, connections, and cables that make data transfer possible. It was designed in 1996. We have now reached version 3.

Hot Swapping

Devices can be connected to the PC via USB without the need for a restart. This is called hotswapping.


Another feature of usb is that it can power devices. For example, a smartphone can be charged by connecting it to the computer. And various brands of external hard drives can therefore be connected to the PC without an adapter.

USB Versions

The following versions are available: usb 1.0, usb 1.1, usb 2.0, usb 3.0 and usb 3.1. The first two versions no longer exist. Newer versions have a higher transfer speed. USB 3.0 is ten times faster than 2.0; 3.1 is twice as fast as 3.0. The speed is not that important for the mouse or keyboard. With a USB stick or external hard drive it is, because files can be saved and / or copied faster.

USB Plugs

A USB cable has a plug on each side. The following logic is behind this:

  • Usb-A

This is a plug that is connected to the PC or the charging adapter. It has exactly the same appearance as the plug of a USB stick. USB 2.0 has a white interior, USB 3.0 / 3.1 has a blue interior.usb-a

The remaining plugs go into a device. Such as a printer, scanner, external hard drive, digital camera, tablet or smartphone.

  • Usb-B

This is a square plug used for printers.

  • Mini usb

    Flat plug with a thick head. Used primarily with older devices.

  • Micro-usb

    The smallest and flattest plug. Recognizable to most people as the charging plug that goes into an Android phone.

The plugs for USB 3.0 Type B and Micro look slightly different.

Apple and usb

The iPhones and iPads also work with USB cables. But the device plug is different. Older models have a wide 30-pin plug. Newer devices have a lightning plug.


The newest USB type is the USB-C. The plug is designed so that it always fits. So it is no longer necessary to study with a magnifying glass how to connect the plug. In addition, USB-C would get one plug type as standard. That did not entirely come true. There are cables with a usb-A and a usb-C plug. For example, the Android phone OnePlus 2 uses such a plug. In the long term, all cables are of the USB-C type, but we are years ahead.usb c

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