The for GameCube Controller Adapter allows you to connect up to four for GameCube controllers or wireless for GameCube controllers to a for Wii U system and PC USB
With two for GameCube Controller Adapters, up to eight for GameCube controllers can be used at the same time
Switch to for Wii U or PC mode by using the switch located on the side
Compatible with Windows XP, Vista, Windows 7,Windows 8,32 bit and 64 bit and Mac OS under the PC mode