Amazon.com: Mayflash GC Controller Adapter for Wii & Wii U (Dual Pack), White : Video Games
Controller Adapter for Wii U with White GameCube Controller (Play-Asia.com Bundle) for Wii U
TTX Tech GameCube Controller Adapter for Wii U and Switch - Micro Center
Nintendo Switch / Wii U - Smash Bros Gamecube Controller Adapter - New & Sealed | eBay
Nintendo GameCube controller adapter coming to Wii U for Smash Bros. - Polygon
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Mayflash Dual Pack Adapter for GameCube Controller Converter to Wii & Wii U | eBay
GameCube Controller Adapter for Wii U, Nintendo Switch and PC USB – Lexuma
Mayflash GameCube Controller Adapter for Wii & Wii U (Dual Pack), White - Walmart.com
Amazon.com: CLOUDREAM Gamecube Controller Adapter for Switch Gamecube Adapter Wii U and PC, Super Smash Bros Choice Support Four Gamecube Controller and 70IN Long Cable : Video Games
Switch GameCube Controller Adapter MayFlash
Amazon.com: Super Smash Bros. GameCube Adapter for Wii U : Video Games
Mayflash GameCube Controller Adapter for Wii & Wii U (Dual Pack) (W014 – SupremeGameGear
GameCube Controller Adapter for Switch (also Wii U / PC) | old-skool
4 Port GameCube Controller Adapter for Nintendo Switch Wii U PC Super Smash Bros - Walmart.com
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raphnet. - Gamecube controller to Wiimote adapter
GameCube® Controller Adapter - XYAB
GameCube Controller Adapter for Wii U & PC USB for Windows, Wii U
Wii U Gamecube Adapter (Violet) for Windows, Wii U, Android
GameCube Controller Adapter for Wii U, Nintendo Switch and PC USB – Lexuma