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Amazon.com: Super Smash Bros. GameCube Adapter for Wii U : Nintendo Gamecube Controller Adapter: Video Games
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Amazon.com: 4 Controllers for Gamecube,with 4 Extension Cables and 4-Port USB Adapter for Switch PC Wii U Console (BPOS) : Video Games
Wired NGC Controller Gamepad For Nintendo GameCube GC & Wii U Console Colors NEW – ASA College: Florida
![Showerthought] We would not using GameCube Controllers on the Switch or Wii U if the Wii had not been Backwards Compatible : r/smashbros Showerthought] We would not using GameCube Controllers on the Switch or Wii U if the Wii had not been Backwards Compatible : r/smashbros](https://i.ytimg.com/vi/FwxbYf5fx6w/maxresdefault.jpg)