The Nintendo Switch now supports GameCube controllers - The Verge
GameCube controller support comes to Nintendo Switch - Polygon
Is it possible to mod your Wii U to connect to the wireless switch GameCube controller? : r/WiiUHacks
Nintendo Switch now has GameCube controller support | GamesRadar+
The Nintendo Switch now supports GameCube controllers - The Verge
Amazon.com: 4 Gamecube controllers with 4 extension cables and 4 USB adapters for Switch PC Wii U console (black + purple + orange + blue) : Video Games
Wii U Gamecube Controller Adapter - Brook Gaming
Another Nintendo Switch v4.0.0 Secret – Gamecube Controller Adapter Support - Siliconera
Hands On: Wii U GameCube Controller Adapter | Nintendo Life
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