This adapter allows your GameCube to be connected on your Wii U. This adapter will allow you to play your Wii U games the way that they were meant to be. Connect your GameCube Controller on your Wii U console. The built-in turbo is compatible with all Wii Classic Controller Pro games, Wii U Pro Controllers and Wii Classic Controller Pro. Connect the Wii Remote Controller and your Wii U console. Plug in your GC Controller and then finally connect your adapter.