GameCube GC Controller Adapter USB Plug Connector Box For PC Wii U Console GC Joysticks Adapter Two USB cables are required to connect the controller adapter to the Wii U console Once a GameCube controller has been connected to the controller adapter, a LED will light up. It is then ready for play Note A: The GameCube controllers will not work in the Wii U's main menu You must enter the Super smash Bros game to be able to use the GameCube controllers