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

I bought a set of 5 sticks in December 2018 and was happy with them so I bought 5 more sticks on March 21st. A March Stick failed within 3 months. I thought it was a coincidence and bought 5 more in June 2021. 1 of the June units failed in September. They just don't work anymore, computers don't recognize them. As such, I have concerns about the reliability of the product and don't want to use it for anything too important or without another backup available. Maybe the manufacturer has quality control issues. Coincidentally (?) both defective wands were purple.