Mayflash 4 Player GC Adapter for Switch / Wii U / PC
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
4 Port GameCube Controller Adapter For Nintendo Switch Wii U PC Super Smash Bros | eBay
TTX Tech GameCube Controller Adapter for Wii U and Switch - Micro Center
Nintendo GameCube Controller Adapter (Nintendo Switch) JAPAN Import without English Manual : Video Games - Amazon.com
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Wii U Gamecube Controller Adapter〔USA〕 Brook Gaming - Official Brook Gaming Store
gamecube controller adapter for wii u, pc usb & switch nexilux - Newegg.com
4 Port GameCube Controller Adapter for Nintendo Switch Wii U PC Super Smash Bros - Walmart.com
GameCube Controller Adapter for Wii U, Nintendo Switch and PC USB – Lexuma
Ultimate GameCube Adapter by Panda Hardware — Kickstarter
Mayflash GameCube Controller Adapter for Wii U and PC USB (4 Port) - Walmart.com
GameCube Controller Adapter for Switch (also Wii U / PC) | old-skool
Gbros
Wii U Gamecube Adapter (Violet) for Windows, Wii U, Android
Gamecube Controller Adapter for Nintendo Switch | Hand Held Legend
Amazon.com: GameCube Controller Adapter : Video Games
4 Port GameCube Controller Adapter for Nintendo Switch Wii U PC Super Smash Bros - Walmart.com
GameCube Controller Adapter 4 port for nintendo Switch Wii U & PC USB NEW TURBO | eBay