Windows 10: Help, USB 3 transfer speed drops constantly to 0 (Kingston Data Traveler 3.0, Though I have...

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:)

 

USB 3.0 transfer speed drops to 0 only on one port. USB port and external drive are NOT defective.

I have a Dell XPS 13 laptop with two USB 3.0 ports. I connect a Seagate expansion drive to the left USB port and transfer a 4GB test file. It transfers about 1GB at 150MB/s and then transfer speed drops to 0. Then it picks up again after 3-4minutes, then
drops again intermittently.

I connect the same Seagate drive to the right USB port. The same 4GB file transfers with a constant speed of approximately 150MB/s. Thus the Seagate drive is not defective. Perhaps the left USB port is defective.

I connect a Sandisk 128GB flash drive to the left USB port (that is now suspected defective). It transfers the same 4GB file with constant 130MB/s speed, no speed drops!

Each step is reproducible 10x.

I am out of my wits here.

 

Flash drives File transfer speed drops to 0 regularly

Hi everyone, I have recently realized my laptop MSI P65 8RF is having a weird behaviour when transfering files or deleting files to/from my flash drives (Kingston Datatraveler Ultimate 3.0 G3 128 GB and Kingston Datatraveler Rubber 3.0 32 gb) it happens that it reaches top speed, around 100 mb/s and then it goes all the way down to 0 mb/s (leds in flash drives stop blinking) and then speeds goes back up again to 100 mb/s (flash drive blinking again). This will happen regularly going up and down, up and down. It happens in both flash drives. Also, I have tried these flash drives in another Windows 10 computer and they work just fine. Data apparently is fine, no data corruption. Another test I did on my laptop it was with USB hard drive, on the same USB port, curiosly, this one work just fine, so apparently it has to do just with the flash drives. Has anyone experienced anything similar? Any idea how address this issue? Thanks.

 

Flash drives File transfer speed drops to 0 regularly

Long shot.

Plug in the USB thumb you normally use, the erratic one. In My PC, make a note of it's drive letter. Eject it.

On the machine in question, the one that is acting weird, go to Device manager.

Click Portable Devices. Look for that drive letter and uninstall (right click>uninstall device) any and all occurrences of it.

Plug the thumb drive back in. Windows will reinstall the driver/device.

Try your operation that was running weird with the fluctuating speeds.