Review on Exmapor 5 Pack USB Flash Drive 4GB Swivel Thumb Drives Key-Chain USB Stick(5 Mixed Color: Black by Ashley Wood

If you need a set of backup disks these will do, but not the first ones I would use. They work, load fast and all files work as soon as you start the drive. My main problem is that the product listing claims to have AT LEAST 8MB/s write speed per transfer, but when transferring files as small as 2GB, not only does the transfer take 6 minutes, it never reaches 8MB/s. The attached screenshot shows a transfer which as you can see never exceeded 7.3MB/s. Not a waste of time, but also not something I would have on hand for quick transfers. This would be best for backing up files if you don't need them immediately, overnight, or whatever.