How to buy USB flash drive?

Globalization is only possible when there is strong IT backbone, therefore information should have to be transferred within seconds, shared simultaneously around the globe, should be portable and any where accessible. To meet this requirement in IT, storage devices with lightning fast data transferring have be introduced, name as USB drive.
USB flash drive also known as flash drive, flash stick or thumb drive was introduced commercially in the market by “Trek Technology and IBM” in the year 2000. Such of USB drives are composed of NAND flash memory data storage wafers in devices which are typically of low cost, easily removable, easily rewritable, having less weigh than an once.
Old storage devices are replaced with USB flash drives, old storage devices are extremely slow to transfer data and had low capacity of storage.
Advantages of USB Flash Drives:

• This drive is economical and easily accessible.
• It has zero possibility of dust and scratches, as it have zero moving parts.
• Data storing is high as comparable with CD/DVD’s, floppy disk, other storage devices.
• It is extremely handy and lightweight.
• Use very little power to store data as compare to hard drives.
• Booting is also possible with this drive.

Disadvantages of USB Flash Drives:

• Flash drives depending upon its memory and function has limited cycles of data writes and removes. So, they cannot be made a primary storage device as they will render useless over time.
• Virus attack and data failure is a major risk, since it is a flash drive.
• There is a possibility of external damages and getting crushed is unquestionable.
• Theft or lost risk is high
• Most of the flash drive ignore the write-protect mechanism