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Mayflash 4 Player GC Adapter for Switch / Wii U / PC
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raphnet. - Gamecube controller to N64 adapter (v3)
Super Smash Bros. Ultimate Edition GameCube Controller | GameStop
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Ultimate GameCube Adapter by Panda Hardware — Kickstarter
Wii U Gamecube Adapter (Violet) for Windows, Wii U, Android
Amazon.com: GameCube Controller Adapter (Nintendo Switch) : Video Games
GameCube Controller Adapter for Wii U, Nintendo Switch and PC USB – Lexuma
Adapter For Switch Gamecube Controller Adapter And Wii U And Pc, Super Smash Bros Gamecube Controller Adapter, With Long Cable - Temu
GameCube Controller Adapter for Wii U, Nintendo Switch and PC USB – Lexuma
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Mayflash GameCube Controller Adapter for Wii U and PC USB (4 Port) - Walmart.com
Wii U Gamecube Controller Adapter〔USA〕 Brook Gaming - Official Brook Gaming Store
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GameCube Controller Adapter for Switch (also Wii U / PC) | old-skool