RAOYI 10 Pack USB2.0 Flash Drive Swivel Memory Stick Jump Drive Thumb Pen Drive 1G*20 blue U215-Blue-1G*20

OLD REVIEW: There's a problem with this latest batch of flash drives, as of August 19, 2019. First, I will say that I have bought more than a hundred 10 packs of these flash drives over the past 2 years, and they have always worked GREAT. Rarely any problems. My duplicators would copy about 14GB data to them in 25 minutes. But this latest batch I received are SUPER slow. It takes about 3 hours and 41 minutes to copy the exact same data on to them that used to only take 25 minutes. So, something has changed for the worse. I found the same problem in more than one box of flash drives. If they will address and correct this issue, I will be happy to update or delete this negative review.UPDATE 11/4/19: The problem has been solved. The newest batch of flash drives are REALLY fast, faster than they ever were before. The duplication time for 15GB of content has dropped to about 16 minutes! Very pleased. Thank you Raoyi!

This item sucks. Three of the thumb drives failed out of the box. First one said it is corrupted and it was unusable, would not even format. Second one kept freezing. Third one worked at first, I downloaded all my files with no problems. However after the computer finished downloading I removed the thumb drive to test it. I used my laptop and guess what my laptop said? “this is corrupted” and it could not read it. I took it back to my desktop same problem. It said it is corrupted and could not read it. All that time wasted for nothing. Save your money buy it from a more reputable source. I did not even bother testing the remaining seven, I simply returned them and purchase a bundle pack from scandisk. A reputable company.

I use flash drives to distribute data files to co-workers. I keep a number on hand, but order more each year, since some drives are never returned to me. This batch of 10 drives was far worse quality than usual. Only 5 of the drives were readable on my very standard Win10 computer (HP). I had older flash drives in my drawer that worked fine, but I threw out 5 of the 10 new drives. Name brand drives work every time, for years. Cheap brands don't work reliably in my experience, but this purchase was the worst ever. I recommend buying a recognized brand name instead.

This was the second time I have purchased this 10-pack of USB drives. I teach computer classes and I give a flash drive to each student with the course material. These have the storage capacity that I needed and the price was very reasonable. They are not a well known brand name, so I was a little worried that perhaps the quality would not be as good. I am pleased to discover that the quality is perfect, there has not been a single failure.

I'm a real estate agent. I use thumbdrives to copy all relevant transaction files to give to clients after close of escrow. Tyypically there are around 75 files that total 50-60mb. These thumb drives error out with a nonsense error message that the drive has run out of space and stops after copying mybe 2/3s of the files. I'm only trying to copy 58mb of files to a 1GB drive. There is plenty of space! This has happened on the first 5 drives I've tried. If I zip the files and then only copy the zipped file to the drive that works without error. But I need to be able to sort the files by flags after they are copied to the thumbdrive. Too many unnecessary steps. Worthless cheap crap. This has never happened with other vendors thumbdrives. Do not buy.