How to choose U disk 2.0, 3.0 and 3.1? What's the difference?
Why are some U disks so cheap and some U disks so expensive? With the popularity of computers and the advent of the digital era, U disks are now becoming more and more popular. However, when buying a good USB flash drive, we must pay attention to whether we buy a 2.0 USB flash drive, a 3.0 USB flash drive, or a 3.1 USB flash drive, otherwise we may only find out how our USB flash drive is when we may use it. slow! It takes a long time to copy large files. In fact, the difference between the 2.0, 3.0 and 3.1 of the U disk can be understood as the difference in the access speed of the U disk. The higher the number, the faster!
Let's introduce their respective origins
First of all, the difference between 2.0, 3.0, and 3.1 of the USB disk interface is due to the replacement of the computer. Before 2009, the computer only had the USB2.0 interface concept, so the U disk at that time was only 2.0. With the development of the computer after 2009, the USB3.0 interface was proposed, which has a faster transmission rate, the transmission speed is more than 10 times that of 2.0, which greatly speeds up the transmission rate, and the corresponding U disk is 3.0 Too. By the time of 14 years, the development of Internet big data then proposed the USB3.1 interface of the computer, corresponding to the 3.1 version of the U disk, and the speed of the U disk of 3.1 only doubled on the basis of 3.0. The price is even more expensive.
Let's take a look at the difference in their appearance
The USB2.0 interface of the computer and the U disk interface of 2.0 are black or white, and the USB3.0 and 3.1 interfaces of the computer and the U disk of 3.0 and 3.1 are blue. You can see if your computer's USB interface has a blue high-speed interface. From this, you can judge whether it supports 3.0 and 3.1 U disks. The interface colors are uniformly specified.
Let's take a look at the difference in their use
USB3.0 and 3.1 must be paired with 3.0 and 3.1 U disks to achieve high-speed performance. The speed of 2.0 U disks is not affected by any USB interface, and it is the same slow. In a nutshell, the color should be right when used, that is, blue to blue, black to black.
Finally, look at the difference in their prices
A USB flash drive of 2.0 is cheaper than 30 yuan and you can buy a large capacity. The same capacity of 3.0 is more expensive than 2.0-2.0 yuan, and 3.1 is more expensive than 3.0--20 yuan.
It's time for us to choose
Is the faster the better? The answer is no. When we choose, it is better to choose 3.0 U disk. We compare and find that 3.0 U disk has the highest cost performance. It is good in terms of price, speed and quality. Therefore, when you buy, you must not buy the antique version of 2.0 by mistake, and of course, do not spend too much unnecessary money. Choose the U disk with the most cost-effective 3.0.
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