The adapter is good quality and it’s made out of metal. It works as USB 3 but there’s a catch: if you put the USB-C plug the other way around it connects as USB 2. The reason for that is that it’s using 8 pins for USB 3 in one side of the USB-C female connector and only 4 of them on the other side so it reverts back to USB 2. I thought my device wasn’t recognised as USB 3 when I originally plugged it in until I tried all my devices plugging them both ways on the adapter and all of them behaved the same. That was a bit cheap. Check it in your computer and mark the correct side.