You can use the Smash Brothers Gamecube adapter in portable mode with a USB C adapter (Rumble works too) : r/NintendoSwitch
Does the USB to gamecube adapter work in Wii mode on the Wii U? : r/wiiu
Amazon.com: Mayflash GameCube Controller Adapter for Wii U, PC USB and Switch, 4 Port : Video Games
Guide to the Best GameCube Controller Adapter for Nintendo Switch
Switch Dock Mod Adds Built-In GameCube Controller Ports | Nintendo Life
![Mayflash Gamecube Adapter for Wii U Review [Better Than The Original] : r/nintendo](https://i.ytimg.com/vi/gQ15FHdmcSk/maxresdefault.jpg "Mayflash Gamecube Adapter for Wii U Review [Better Than The Original] : r/nintendo")
Mayflash Gamecube Adapter for Wii U Review [Better Than The Original] : r/nintendo
Are the third party Wii U-Gamecube controller adapters good? : r/smashbros
Finally found one! : r/smashbros
The GameCube Controller, Powered by Open-Source Firmware (Review) : r/SSBM
GameCube Controller Adapter in 5.25" drive bay : r/pcmasterrace
Mayflash 4 Port GameCube Adapter - In Game Reset is not working | GBAtemp.net - The Independent Video Game Community
Amazon.com: Mayflash GameCube Controller Adapter for Wii U, PC USB and Switch, 4 Port : Video Games
Will this specific adapter work with Dolphin? It's a Nintendo Switch Gamecube adapter and appears to be a first party one : r/DolphinEmulator
GameCube controller issue? Characters moving straight down when I'm not even touching the controller. If anyone has a solution it'd be appreciated : r/DolphinEmulator
Amazon.com: GameCube Controller Adapter : Video Games
The Mayflash Gamecube to Wii U adapter will be available starting next week on Playasia.com! : r/smashbros
![LAHD] Playing Link's Awakening with a Gamecube controller helps with the 8-directional movement : r/zelda](https://i.redd.it/9q0kmm7f7go31.jpg "LAHD] Playing Link's Awakening with a Gamecube controller helps with the 8-directional movement : r/zelda")
LAHD] Playing Link's Awakening with a Gamecube controller helps with the 8-directional movement : r/zelda
GameCube Controller Adapter for Wii U, Nintendo Switch and PC USB – Lexuma
I had no idea this worked! Using a Mayflash adapter on my Android phone! : r/emulation
3D Printed Dock + Gamecube Adapter : r/NintendoSwitch
![Guide] Using A Gamecube Controller With A Mayflash Adapter (VirtualHere Not Required) : r/Steam_Link](http://i.imgur.com/icG0Is4.jpg "Guide] Using A Gamecube Controller With A Mayflash Adapter (VirtualHere Not Required) : r/Steam_Link")
Guide] Using A Gamecube Controller With A Mayflash Adapter (VirtualHere Not Required) : r/Steam_Link
Mayflash Gamecube Adapter for RetroArch? : r/RetroArch
Advantage of Nintendo vs Mayflash Gamecube adapter? : r/nintendo
So you only need to plug is one USB(the black one) to get the GameCube controller adapter to work with all 4 controllers. (X-Post from /r/Nintendo) : r/smashbros
