Gen10 Magnetic Fast Charging USB-C(female) To USB-C(male) Adapter for Type-C smartphones(2 pack black)

I did a stress test of the adapter with the connectors using an Electronic Load which also measures voltage, amps and wattage as well as a multimeter that measures the temperature of the cable where the LED is.Pros:+ Smallest footprint magnetic connector I've found+ Fits on limited space in mice like Logitech G Pro Wireless and Logitech MX Master (using the micro USB connectors)+ At 2.1A the adapter sustained 4.6V for a total of 9.7W+ After a 5-hour stress test, the adapter never went over 30C and the voltage never droppedCons:- Not the smallest magnetic connectors around, but small enough for my use cases

Great idea for an item but one of the three broke after a few weeks of mild use. I have been trying to get it replaced but Amazon are being of no assistance