How to test USB disk quality

php editor Zimo will introduce to you how to test the quality of U disk. With the popularity and frequency of use of U disks, we often encounter problems such as slow reading and writing speeds of U disks and file loss. In order to ensure the quality and reliability of the USB flash drive, we need to conduct some tests. Simple test methods include checking the appearance quality of the USB flash drive, performing reading and writing speed tests, and performing data stability tests. Through these tests, we can evaluate the quality of the USB flash drive and take appropriate measures to protect and maintain the use of the USB flash drive.

Many people want to find a simple and reliable way to identify USB flash drives, but there is currently no direct method. The only way to identify it is through a computer, or by visual inspection.

Let’s plug the U disk into the computer, and the name of the U disk brand will be displayed on the computer. Let’s plug the U disk into the computer again and try it. try.

Scanning.

Friends will find that the U disk scan is very slow.

Only the removable disk is found after scanning. We can try to use a computer to identify it. However, the computer identification result showed that the new USB flash drive was empty, but when the identification failed, it showed 123G. In fact, it was just a shrink disk. This means computers can't be carried around, but laptops can.

If you don’t have a computer around you, let me teach you how to do visual inspection.

Two of these five USB flash drives are fake. Let’s take a look at the genuine USB flash drive first.

The workmanship is particularly exquisite, especially the printing. Let’s take a closer look. There are several lines of small characters on the U disk head.

The model capacity and brand name of the U disk are printed on it. ,

Then you touch these two lines of words with your fingers,

The feeling of prominence is particularly strong.

And no matter what tool you use to scrape these two lines of words, they won’t be scratched off.

This shows that this U disk is a genuine U disk. Let’s take a look at the appearance of this U disk from a certain brand of U disk.

The workmanship is not that good and is particularly rough.

Look at the printing on it. We can pick it out with our fingers.

Let’s take a look at the side of this USB flash drive.

It has one more thing stuck on it than a normal USB flash drive.

There are several letters and date of birth printed on it. ,

I always feel guilty as a thief.

Really good U disks will not have these anti-counterfeiting marks on them.

This looks too fake.

Let’s take a look at this U disk without any markings, only the capacity and the name of the brand.

It’s marked with four In fact, the capacity of G is not even 1G.

Look at how this USB flash drive is made.

There is nothing on the 128G print. Needless to say, the workmanship is very rough.

A genuine USB flash drive can be made very delicately out of a piece of plastic, with markings on it.

There are also two lines of small words here.

I tried these two on the computer earlier, and the USB disks were both 2.0.

Friends, please remember that you get what you pay for. Good goods are not cheap, and cheap goods are not good either. If you buy them online, you should go to the flagship store to buy the USB flash drive.

Friends If you have a better way, leave a message and we can discuss it with each other!

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