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NEXiLUX Nintendo Switch GameCube Controller Adapter for Wii U, PC USB – J&L Video Games New York City
Gamecube Controller Adapter - Old Skool - Switch/Wii U/PC Compatible | The Rift Games Inc
GameCube Controller Adapter for Switch (also Wii U / PC) | old-skool
GameCube Controller Adapter for Wii U for Wii U
Amazon.com: Gamecube Controller Adapter for Switch/Switch OLED.Gamecube Adapter Compatible with PC Wii U.Adapter with 4 Ports 6 FT(1.8M) Cable Support Turbo and Vibration Features Super Smash Bros : Video Games