What does it mean to shrink the U disk and the expansion disk respectively?

Recently a friend went to the computer city to buy a 16G u disk, the computer with the Golden Hill poison PA's U disk authentication test results show that the actual capacity of only 4 G, and suggested that it is shrinking u disk. Friends immediately went to buy a U disk where to find business, merchant wrong, obediently changed a true 16G capacity of U disk. What is the shrinking U disk? Today to share with you about the shrinking U disk knowledge and detection methods.

Shrink u disk, also known as "expansion Disk", "Upgrade Disk". Refers to the unscrupulous manufacturers use a production tool software, change the main control information on the U disk, the capacity of the U disk is larger than its actual capacity, in order to defraud consumers profiteering. When the actual capacity of the USB stick is less than or equal to its nominal 90%, it is considered to have a quality problem of the shrinking U disk.

Shrink U disk Features

1. The actual capacity is much smaller than the label capacity, such as 16GB USB flash drive may be 4GB,2GB and other fake! But my computer, the properties of the U disk can not be seen.

2. In the process of use, not only the replication speed is very slow, and will soon appear "insufficient memory" prompt.

3. Files copied to the shrinking disk, exceeding the actual capacity, cannot be read and used normally.

4. It will give consumers a series of lost data, data corruption can not be read caused work delays and other problems.

Identification method

The most direct and effective method is to purchase on-site direct identification. Manually on the seller's computer to store more than half of the data on a USB flash drive, if it is a shrinking disk, the data deposited is damaged and cannot be opened. or use a U disk identification tools such as Jinshan U disk Defender (or Jinshan poison pa own USB Stick guard), 360U disk identification, such as the identification of the line (below will be the Golden Hill poison pa from the U disk defender as an example to explain).

If you accidentally buy the shrinking u disk, you should immediately turn out the documents and information, and communicate with the merchant as soon as possible to exchange or claim. Shrink u disk when using do not exceed the actual identification capacity, otherwise it will cause data loss, destruction.

Below is the use of Jinshan U disk defender. Jinshan U disk defender integrated in Jinshan poison PA's Hundred Treasure Box small application tool. Of course not installed Kingsoft Antivirus software can also use 360U disk identification, the tool is integrated in the 360 security defender's function of the small tools inside.

　　The actual capacity of the U disk and the manufacturer detailed information . This factory information can also know that the USB stick is not the original brand factory out, some counterfeit U disk will be used to fake U-disk chip as well-known manufacturers. For example, if you buy a Kingston u disk, a test drive chip manufacturer does not show Kingston's information. Then you have to consider the authenticity.