
At first I was afraid that these two cables do not work, but in fact it was a bug with my phone (Galaxy S20) and after a hard reset they worked. However, when trying to charge my Nintendo Switch, also USB-C, it worked very briefly and then stopped. They charge pretty quickly if you use a good charger. The C connector doesn't fit my phone very well, I have to force it in and I really hate it, but I really need those extra chargers. So be aware that they feel like they don't need to belong.