Wii U's GameCube Adapter Will Only Work with Smash Bros. - GAMING TREND
ファイル:Nintendo-GameCube-Broadband-Adapter-01.jpg - Wikipedia
楽天市場】GameCube/Switch Controller Hub-4 Port Adapter(GameCube/Switchコントローラー用4ポートアダプター)[新品・輸入品] : QVO
Amazon.co.jp: BROOK GameCube Controller Converter, Switchable, Controller Game Cube, Official Genuine Product : Computers
GameCube Controller Adapter for Wii U, Nintendo Switch and PC USB – Lexuma
Amazon.com: Gamecube Adapter for Nintendo Switch Gamecube Controller Adapter and WII U and PC, Super Smash Bros Gamecube Controller Adapter. Support Turbo and Vibration Features with 180cm Long Cable : Video Games
GameCube Controller Adapter for Wii U, Nintendo Switch and PC USB by L
Wii U Gamecube Controller Adapter〔USA〕 Brook Gaming - Official Brook Gaming Store