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C-stick, activate: Wii U to receive GameCube controller adapter | Ars Technica
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White Wii U GameCube Controller Adapter Spotted - News - Nintendo World Report
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Confirmed: The Wii U GameCube Controller Adapter will not work on DDR, Active Life, or Cyberbike | Gaming.Fit
How to Connect a GameCube Controller to the Wii - Howchoo
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New 2020] How to use Official GC adapter on GC "Emulator" for WiiU! (nintendon't) - YouTube
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Wii U can use two GameCube controller adapters
Guide to the Best GameCube Controller Adapter for Nintendo Switch
Wii U's GameCube controller will support more than just Smash Bros. [updated] | VentureBeat
Mayflash GameCube Controller Adapter for Wii & Wii U (Dual Pack), White - Walmart.com
Amazon has a Gamecube controller adapter for Wii U - NintendoToday
Nintendo Wii U & Switch GameCube Controller Adapter - OFFICIAL OEM | eBay
GameCube Controller Adapter for Wii & Wii U (Dual Pack), White
GameCube Controller Adapter by Nintendo for Wii U New in Box Factory Sealed CIB | eBay
Wii U Gamecube Adapter (Violet) for Windows, Wii U, Android
Nintendo GameCube controller adapter coming to Wii U for Smash Bros. - Polygon
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SNES / NES to Gamecube Controller Adapter Nintendo Wii Switch - Etsy