Preface
From the first picture and text, friends already know how to choose the right USB interface when using a USB flash drive.
Type-C is plugged in, followed by blue/yellow/red/green USB ports.
So, how to see how fast or slow your USB flash drive reads and writes?
It's 2023, and it is estimated that many friends are still using USB2.0 USB flash drives, and it will take a long time to copy 1GB files, but they don't know where the problem is.
In this issue, U disk and mobile hard disk are recommended, at the end of the article!
The body begins
There are many types of USB flash drives and portable hard drives, and the various protocols are also different. This article will be explained according to the USB flash drive commonly used by friends~
1. Look at the interface color (only suitable for USB-A interface)
The USB port on the USB flash drive generally has only three colors: blue/black/white.
The blue color has the fastest read and write speed, which is USB 3.0 or above.
All blue
A little bit blue
All blue or a little blue is very fast!
Black and white are generally USB2.0 or below, and the read and write speed is slower.
Second, look at the pins
If you can't tell the speed of the USB flash drive by the color, then you need to look at the number of pins.
In the USB-A interface, 9 pins are faster than 4 pins.
9pin belongs to USB 3.0 or above.
If it is a 4-pin USB flash drive, then you have to consider replacing it.
This 4pin USB flash drive socket belongs to USB2.0
3. Look at the logo
Generally speaking, the manufacturer will clearly identify the USB socket of the USB flash drive, which will say USB2.0/USB3.0/USB3.1/USB3.2, etc.
USB3.2 is faster than USB3.1 (in the same generation, the mantissa is the winner)
If you encounter a USB flash drive that doesn't even have this kind of logo on the USB flash drive, don't buy it, it's very watery.
--End--
After reading this, you can go and see what kind of USB flash drive you have at hand~
Next, let's talk about expanding knowledge, I feel like I'm going to grow my brain today!
Expand your knowledge
When it comes to external storage devices, there are many options, and USB flash drives are just one of them. According to the protocol, working mode and interface, and then sorted according to the read and write speed, there are the following types (the higher the front, the faster the read and write speed):
1. Thunderbolt protocol Thunderbolt interface solid-state mobile hard disk;
2. NvMe protocol Type-C interface solid-state mobile hard disk;
3. SATA/NvMe protocol USB-A interface solid state mobile hard drive;
4. USB3.0-3.2 interface solid-state U disk;
5. a mechanical mobile hard disk;
6. USB3.0-3.2 interface U disk;
7. USB2.0 interface U disk.