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USB Cards

USB Cards Disk-on-key or, as we all call it, a flash drive or memory stick.

This memory stick is standard for connecting to computers and allows you to store any information you want.

These are various documents and photos, video files, music files, graphic files, etc.

By connecting the flash drive to the computer, you can transfer information from the device to the computer and vice versa.

Also, a flash drive can be used to transfer information between different computers.

With it, you can save your information, as well as free up space on your computer.

All your information can be stored on an external memory card for later use, the moment you need it.

Today, flash drives are manufactured by different companies and have different designs and different gigabyte sizes.

USB standard

The USB standard offers one standard PC connection for different devices instead of those that existed before.

Today it is the most popular and well-known device for connecting to personal computers.


USB was created to provide a fast and good port for connecting a large number of devices.

Due to the problematic nature of the old ports, which were slow and difficult to install, a new interface was needed. This interface has become USB, which allows connecting up to 127 devices to a computer.

USB allows you to connect and disconnect devices without having to restart your computer, and it also allows you to connect multiple devices automatically without manually installing drivers.All this makes the USB the most successful connection interface in the history of the computer.

A USB cable contains four strands: two for data transfer and the remaining two provide a low voltage of 5 volts.

The newest version of the interface is USB 4 released in May 2020.

It supports data up to 40 GHz, combined with data protocol numbers

Simultaneous display, backward support for USB, USB 2.0, 3.2 and Thunderbolt 3.

In display mode only it allows the connection of display devices up to 16K.

Types of physical connections:

USB A – The most common USB port (rectangular).

USB B – a little less common form

Mini USB – A smaller version suitable for smaller devices.

Micro USB – the smallest version.

TYPE C – Meets the requirement for a more advanced connector in terms of size, usability and speed.

OTG – Standard for USB 2.0 allows you to connect a standard keyboard, mouse or memory stick to a PDA or smartphone, etc.

Wireless USB – a device that does not need cables at all and works by a combined port.

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