Wii U can use two GameCube controller adapters
Can you use Nintendo GameCube controllers with the Wii? - Quora
Officially Licensed GameCube Controller Wannabes for Wii U and Nintendo Switch - YouTube
How to Use a Gamecube Controller on a Wii: 5 Steps (with Pictures)
Is it possible to mod your Wii U to connect to the wireless switch GameCube controller? : r/WiiUHacks
raphnet. - N64 controller to Wii/Gamecube adapter (v2)
Amazon.com: Mayflash GC Controller Adapter for Wii & Wii U (Dual Pack), White : Video Games
Amazon.com: Y Team Controller Adapter for Gamecube, Compatible with Nintendo Switch, Super Smash Bros Switch Gamecube Adapter for WII U/PC with 4 Port : Video Games
How to Use a Gamecube Controller on a Wii: 5 Steps (with Pictures)
raphnet. - Gamecube controller to Wiimote adapter
Is it possible to connect Nintendo GameCube controllers to a Wii (not a Wii U) with some kind of adapter? If so, can you send a link? - Quora
How to Use a Gamecube Controller on a Wii: 5 Steps (with Pictures)
Amazon.com: TOOPONE Wireless Gamecube Controllers, Classic Gamecube Wavebird Wireless wii Controller Remote Gamepad Joystick for Nintendo Gamecube Console, Compatible with Wii (Black and White) : Video Games
LUXMO Wired Gamecube Controller, Classic Gamecube Wii/Wii U Controller Gamepad Joystick for Gamecube Console - Walmart.com
List of GameCube Controller-compatible Wii video games - Codex Gamicus - Humanity's collective gaming knowledge at your fingertips.
GameCube Controller Adapter for Wii U, Nintendo Switch and PC USB – Lexuma
raphnet. - Gamecube controller to Wiimote adapter
:max_bytes(150000):strip_icc()/how-to-connect-gamecube-controllers-to-the-switch-featured-43951df5b19547769f507be8eed85f45.jpg "How to Connect GameCube Controllers to the Switch")
How to Connect GameCube Controllers to the Switch
Amazon.com: Brook Gamecube to Wii U Controller Adapter - Support Gamecube Controllers Adapter for Wii U and PC USB Android, up to 8 GC Controllers in The Same time (MAX), Turbo fire
Tutorial: How to use your GameCube Controller Adapter for Wii U on the vWii - YouTube
raphnet. - SNES controller to Wii/Gamecube cable
Amazon.com: Super Smash Bros. GameCube Adapter for Wii U : Video Games
HOW TO USE A GAMECUBE CONTROLLER ON WII GAMES (DOLPHIN) - YouTube
GameCube Controller Adapter 4 Port Compatible with Nintendo Switch Wii U & PC USB
