Stopped working after a few months

I liked these cables initially - seemed to be good quality. I liked having a really long one for work. And a good price... But before 3 months of use, two stopped working and now 3 of the 4 have stopped charging my iPhone 8. When you plug it in to the iPhone, it makes it look like it will charge, but then comes a message that "this device may not be supported" and no charging follows. I would not recommend this product.

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