Use Bluetooth Controllers with your GameCube (No Soldering!) - YouTube
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Wireless Bluetooth GC Adapter For Gamecube/Wii/NES/SNES Classic Controller To PC Turbo Capture - Walmart.com
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GameCube Controller Adapter for Wii U, Nintendo Switch and PC USB – Lexuma
GameCube Internal Blue Retro Upgrade Kit | RetroRGB
GameCube Controller Adapter 4 Port Compatible with Nintendo Switch Wii U & PC
Gamecube Receiver for Wireless Gameboy Controller now available : r/Gameboy
GameCube Controller Adapter For Wii PC and Nintendo Switch
Bluetooth PS3 Controllers Modernize The Nintendo GameCube | Hackaday
For Nintendo Gamecube Blueretro Wireless Controllers Adapter For NGC | eBay
Source Wireless BT-compita Adapter Converter with USB Cable Fit for Nintend Switch for Game Cube/Classic Edition for Wii Classic on m.alibaba.com
Bluetooth PS3 Controllers Modernize The Nintendo GameCube | Hackaday
Wireless Controllers Adapter For NGC GameCube Supports Bluetooth X0Y6 - Walmart.com
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BlueRetro For Nintendo GameCube Console Wireless Game Controllers Adapter Compatible with PS3 PS4 PS5 Switch Pro Will Controller - AliExpress
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Control a Nintendo Gamecube with a PS3 controller - Open Electronics - Open Electronics
Warrior Wireless Adapter - Retro Fighters
Amazon.com: 8Bitdo Gbros. Wireless Adapter for Nintendo Switch (Works with Wired GameCube & Classic Edition Controllers) - Nintendo Switch : Everything Else
Armor3 "Nuport" Wireless BT Bluetooth Adapter for Nintendo Switch & PC – Gametronex.com