Ortz® Gamecube USB Controller Adapter for Wii U & PC - 4 Ports - Perfect for Super smash Bros - - Windows & Wii U Compatible - Works on Dolphin Emulator
Amazon.com: Mayflash GameCube Controller Adapter for Wii U, PC USB and Switch, 4 Port : Video Games
Dolphin Emulator - GameCube/Wii games on PC
Dolphin Emulator - Configuring controllers
How to Play Wii Games on Dolphin Emulator: Guide for PC
Wii Menu - Dolphin Emulator Wiki
Seamless 4K Wii U Emulation Is Almost Real Thanks To Cemu - GameRevolution
Wii U Emulator - How to Play Wii U Games on PC - YouTube