Watch: Hackers use the Wii U GamePad to stream PC games – GeekWire
Controller Adapter for GC, Super Smash Bros NGC Controller Adapter for Switch, Wii U and PC USB w/ 4 Port - Plug & Play, No Drivers Needed: Amazon.co.uk: PC & Video Games
How to Use a Wii U Gamepad With a PC
GameCube コントローラ・アダプター Wii U/PC/nintendo Switch対応 – World Game Express