I bought two of these a few months ago to play Nintendo Switch with my PS4 controllers. I've finally learned to use them. Setup was easy and the controller works BUT you can't put both adapters in the switch at the same time. The adapters are too bulky to fit into every USB slot for the Switch. I wish I had known about this before I bought two. UPDATE: sorry. I completely forgot about the USB port on the back of the Switch. You can drop it there and use the second one that way.