Small enough to hook to a keychain, the USB flash drive or disk drive emulate a smaller and allows the data is easily transferred from one device to another. The way it works is very simple. It also works very fast. Since it is a relatively new device, manufacturers need to put it up, with new capabilities and greater energy reserve. Some of the purposes for which can be used are described below.

For the transportation of personal data

The most common use of a USB is to transport or store personal files like documents, photos and video. You can also store medical alert information in case of emergency or disaster preparedness.

Repair of
The successful use of USB drives has been noted in the field of PC repair as a means to transfer recovery and antivirus software to infected PCs. It also allows a portion of the machine data are stored in the same emergency.

It helps system administrators

System administrators and network will find a handy USB flash drive to load the configuration information and software used for system maintenance, troubleshooting and recovery. Such use of this portable device makes it popular among them.

As a carrier of the application

The original pen drives are used to carry applications that run on the host computer without installation. U3, backed by USB flash drive vendors, offers an API to write this specific unit functions. PortableApps, free software and open source has been developed to provide similar functionality on non-U3-U3. airWRX is also an application framework that runs from a USB drive and turns its host PC and other nearby equipment in a multi-screen work environment similar to a network.

As audio players

A number of companies are introducing digital audio players in this little gadget, essentially producing flash drives with sound output and a simple user interface. The MP3 player feature is the most popular plug a USB stick.Some of them also have LCD screen to navigate between tracks and audio inputs and a rechargeable battery.