USB Flash Drive 512gb, Coousyu PC Memory Stick Thumb Waterproof Backup Drive-Silver

Everything went as advertised. Too new to go into detail.

My files saved in the flash drive corrupted after used in switching between Windows laptop at work and my personal MacBook and I was not able to recovered :(

Using it to back up my Mac. Failed after it was formatted for use.

I have been storing all of my pictures on my hard drive for many years. It occurred to me that my speed of my computer slowing was due to the amount of pics. I purchased the 512 GB flash drive because it was the largest capacity drive I could find. It stores thousands of pictures and I now cleared up my computer and have one place for all my pics!

I’m not a paid shill for anyone. I WANT to like these. I bought 2 to transfer some large GoPro video projects. I know my computer is fine, the files are fine, etc. These flash drives work poorly. I returned for replacement 1 immediately because it didn’t recognize, and then when filling them- once I got to the 60gb range of used space on them, copy kept failing. When I copy to my microSD cards, they copy fine. Doing a CHKDSK on the drives, they both came up with errors. Re-formatting them (including trying formatting them to NTFS) resulted in no CHKDSK errors, but when I went again to copy files back onto them, the problems arose again.PLEASE, PLEASE, PLEASE do not buy these if you need to trust that what you put on there will actually be put on there correctly. You WILL have issues and your data may be lost. YOU DO GET WHAT YOU PAY FOR when it comes to these. I returned both of them for refund went to a main stream company’s products and now have zero issues, so buyer beware.

Love this FLASH Drive!! It's sleek and easy to carry. It has a fast download speed even though its only a 2.1. My son is using it for his gaming and he has plenty of storage left. So glad I picked this on but of course for the great value!! Super please with this purchase!!

I bought two of these USB flash drives (512 GB). The first thing I noticed is that after copying about 60 or 70 GB of data onto the drive, saving additional files becomes tremendously slow. Even saving a file that is only a few megabytes might take 5 or 10 minutes after that point.I did attempt to reboot my computer and try copying more files to see if the copies would speed up. No luck. Saving files on both flash drives I bought took so long as to make the drive unusable.On my 4th or 5th attempt to see if I could get saves to occur faster, the drives completely stopped working. I could no longer read any of the files I had managed to save on any of my computers.These drives are worthless.

I cleaned my computer and I downloaded the pictures to USB.Product is exactly as advertised. and works as it should. Good writing speeds, Very fast.I got this for the excellent price with much more storage .Small and easy to use.recommended