This adapter allows you to connect your GameCube controller on your Wii U. Finally, you will be able enjoy your games the way they are meant to be played. Connect your GameCube controller to your Wii or Wii U console Built in Turbo Compatible with all games supported by the Wii Classic Controller, Wii Classic Controller Pro and Wii U Pro Controller How to connect? Connect the Wii Remote Controller to your Wii or Wii U console, then plug your GC Controller to our adapter, and finally connect our adapter to your Wii Remote Controller The button A, B, X, Y, L, R and Z can be customized with TURBO