Difference between true and false LED indicators in circuit board position
When reading and writing, the position of the indicator light varies greatly.
The genuine usb plug feels loose when it is pulled by hand, while the fake card is so tight that it can't be pulled at all.
When plastic is poured into the shell of genuine Kingston U disk, the mold is closed as shown by the arrow. There may be multiple sets of molds, and the clamping positions of different batches are slightly different, but they are all located on the cross section of the shell. Today's fakes do not have the above characteristics.
There are also the following conditions, one of which does not meet the requirements, and it may be a fake.
1. According to the different internal structures of the two usb flash drives, whether the genuine Kingston uses the Qingtai Skymedi scheme, Groupon group connection scheme or the latest 3S scheme, the LED indicator is closely attached to the back of the USB plug, and flashes at the avatar position when reading and writing. Fakes basically use public circuit boards, and LED indicators are installed at the end of the circuit boards, which can be easily identified after being plugged into a computer.
2. Due to the different molds of the real and fake Kingston U disk case, the real Kingston case and the circuit board are specially designed and customized, and the circuit board can just be embedded in the case card, and there are still a few vacancies. Grab the shell with one hand and the usb plug with the other, and gently pull it, it will feel loose; It's a fake public circuit board, so drill the circuit board on the side of the usb plug fixing foot hard, force the circuit board into the shell to fix it, and even apply hot melt adhesive. If you follow the square farad above, there is no feeling of looseness at all.
3. There is another feature of the genuine shell: when the USB cap is filled with plastic, the closed position is on the cross section of the cap wall (the cross section facing the USB plug direction). If you look closely, there is an irregular dot that is slightly concave; The closed position of the upper and lower plastic covers of the U disk is next to the USB plug (on the cross section of a small circle of plastic wrapped around the USB plug), and irregular dots can be seen. The false shell does not have the above characteristics.
1. Look at the appearance
The shell and body of the authentic Kingston USB flash drive are very tight.
There is a gap between the shell and the fuselage of the fake Kingston USB flash drive.
Authentic Kingston USB flash drive with capacity and serial number displayed on the side. Those words feel very three-dimensional and concave and convex.
The fake Kingston USB flash drive shows the capacity and serial number on the side. Those words feel like they are stuck on the film, but they have no concave-convex feeling.
The telephone number of the genuine Kingston USB flash drive anti-counterfeiting identification is 800-820- 1399.
The phone number of the fake Kingston USB flash drive is 800-820- 13 15.
Authentic Kingston USB flash drive socket looks metallic.
The fake Kingston USB socket looks a bit rough.
Authentic Kingston USB flash drive socket is black.
The fake Kingston USB socket is white.
2. Observe during operation
Authentic Kingston USB flash drive is recognized as Kingston Datatraveler 2.0 USB device after being inserted into the computer.
A fake Kingston USB flash drive is recognized as a mobile disk after being inserted into a computer.
After the authentic Kingston USB flash drive is inserted into the computer, when transmitting data, "before K" lights up on the head of Kingston trademark owner (different batches may light up differently, before 2G "before K" lights up, now only the head lights up).
When the fake Kingston USB flash drive is plugged into the computer, ston lights up when the data is transmitted.
3. A batch
In the current batch
2G Kingston USB flash drives are mostly green and white.
The 4G Kingston USB flash drive is only available in purple and white.
The 8G Kingston USB flash drive is only available in black and white.
4. Software identification
1.ChipGenius can identify which chip, but don't focus on this test, the reliability is 50%.
2.MyDiskTest can detect the quality and speed of the USB flash drive, whether it is a polished product or not, and the reliability is 90%.
It is suggested that the larger the USB flash drive, the more it will be used.
Because the greater the capacity, the greater the probability of problems.
3. Kingston officially recommended speed measuring software:
ATTO disk benchmark 32
After I bought the USB flash drive last time, I communicated with Kingston after the sale if there was a problem, and introduced that I could use this software to test the speed ~ ~ ~
The above is a personal summary of the identification method of Kingston U disk, hoping to help friends who buy Kingston U disk in the future ~ ~ ~
You can also go to official website to check whether it is genuine. If it is genuine, I suggest you go to KF during the warranty period.
The price depends not only on the capacity, but also on the style and appearance. At present, 1G is basically not used, and 2G in 50 yuan is about 70, and 8G in 130 is about 240.