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php editor Zimo will answer a common question today: "SanDisk U disk copying is slow." Many people encounter the problem of slow copy speed when using SanDisk USB flash drives, which brings inconvenience to our work and life. So, why is SanDisk U disk copying slow? What are the solutions? Next we will answer them one by one for you.
With the development of cloud network disks, cloud storage has become mainstream, but USB flash drives are still an essential tool to copy content without the need for a network.
Some netizens asked how to improve the transmission speed of the USB flash drive. It took more than ten minutes to transfer a 6G file, and the speed was so slow.
Today I will share with you tips on improving the transfer speed of USB flash drives. First, let’s learn a little bit about the USB interface.
Different USB interfaces will directly affect the transmission speed.
There is no doubt that USB4 >USB3.2>USB3.0>USB2.0>USB1.1, the further forward the interface is, the better.
Since USB1.0 has basically been completely eliminated, we focus on USB 2.0 and above.
Generally speaking, USB2.0 is mainly black and has a maximum transmission rate of 480Mbps; USB3.0 is mainly blue and can reach 5Gbps.
USB3.0 supports downward compatibility with USB2.0, which means that USB3.0 devices can be plugged into the USB2.0 interface for use. However, to fully utilize the transmission speed of USB3.0, you still need to use the USB3.0 standard port.
Or the other way around, insert a USB2.0 device into the USB3.0 interface. Although it works normally, the data transmission will work at the speed of the USB2.0 interface.
If it is a usb3.0 interface and is also a USB3.0 device, but the speed is no different from USB 2.0, then something is wrong. It is possible that the 3.0 device is recognized as 2.0 by the computer!
USB2.0 has 4 pins on the front; USB 3.0 also has 4 pins on the front, but there are 5 pins on the back. These pins are used for signal detection.
If the speed of inserting the U disk is too slow, the computer will capture the USB 2.0 signal first, but will not receive the subsequent USB 3.0 signal, so it will recognize the USB 3.0 device. into USB 2.0.
In other words, inserting the USB disk too slowly will also cause the transmission speed to slow down. Doesn’t it sound a bit incredible, or even funny?
Some netizens did a test for this, deliberately slowing down the speed of inserting the USB flash drive, deliberately allowing the computer to recognize it as a 2.0 USB flash drive, and then transferred the file for testing.
The data obtained shows that a video of about 6G takes about 12 minutes.
Use the same U disk again, the same USB interface, and quickly insert the U disk this time. For the same file, the speed has been significantly improved! It only takes about 2 minutes for the transfer to be completed.
To summarize, there is a big speed difference between USB 3.0 and USB 2.0. When using a USB 3.0 U disk, you can try the above method to speed up~
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