and a very prolific reviewer of USB Type-C connectors on Amazon. The latest cable he tested destroyed his test equipment, including a $1500 Chromebook Pixel 2 (link dead, try Internet Archive).

Unfortunately, there’s no way to test out USB cables for their actual transfer speed before you buy them. The only thing you can do is read lots of reviews, like our own roundup of the best USB ...

Depending on what USB-C cable you buy, your iPhone's charging rate and data transfer speeds may vary from optimal to good enough to painfully slow. Fortunately, we've rounded up the very best USB ...