KOOTION 10 Pack 4GB Flash Drive 4gb USB 2.0 Flash Drives USB Drive Jump Drive Bulk Thumb Drive Swivel Memory Stick Black

It was easy to use for storage.

Bought these to use with my embroidery machines. Great buy!

I needed Low capacity drives for compatability with usb 2.0 devices. i tested these and yes these are fast usb 3.1 and have 16gb. Authentic -get what you pay for. i copied 16Gb at 20MB/s -reads at 120MB. fast read speeds to play 4k video from. photo of test results attached. good product for cheap affordable price and performance. although i hate the swing type handle. i knew what i was buying and i got exactly what was advertised.

Overview: As described. Experience: Have had no issues with storage or transfer times, Very cost effective. I preferer retractable type but flip is fine for most uses. The flip cover is flat and smooth so you can easily label or write on it. Standard lanyard attachment as well. Best bang for the buck I have found without buying in bulk.

Package arrived quickly and the drives perform as expected

They work well. It is easy to monitor if they are active on your computer; the whole drive lights and responds.

*Every* drive from this purchase failed with unrecoverable sectors on Windows 7, Windows 10, and Mint v21. None of the drives presented errors when they were reformatted (variously to FAT32, exFAT32, and/or NTFS), but all of them failed when trying to read data of various sizes. The drives responded at extremely slow speeds, seemingly slower than USB 1 speeds; I couldnt tell if this was error recovery attempts or just the drive being absurdly slow. (And frankly didnt want to invest any more of my time in investigating...) TL;DR: Dont waste your money on these drives - theyre not worth the cost even if they were given away for free, as they dont reliably store data.

First of all, these are certainly NOT full speed USB 3.0 flash drives. You get an average of about 20 MB/s write speeds. And while you DO get pretty fast read speeds, it needs to be taken with a grain of salt. Secondly, the port cover on these is very flimsy and doesnt do a good job at protecting the plug. Finally, this set of ten flash drives comes in a very basic box and the drives are not individually wrapped/sealed. Its not a bad value overall and I can not speak for their longevity, since I only recently started using them.

Happy with product. Good quality for the price

Something I disliked was that when the usb was plugged in it was difficult for the computer to detect. Though it still will detect it as long as you move it a little, was worth the price though.