Wii U can use two GameCube controller adapters
Hands On: Wii U GameCube Controller Adapter | Nintendo Life
Just Got One of Those Gamecube Controllers That Plug Into the Wii Remote. What's the Difference Between These and the Actual Gamecube Controllers? : r/smashbros
Tutorial: How to use your GameCube Controller Adapter for Wii U on the vWii - YouTube
How to mod a Gamecube controller to connect to a Wiimote for Wii U and Wii - YouTube
Nintendo GameCube Controller Connection Tap for Wii U 4902370522822 | eBay
Amazon.com: Gamecube Controller Connection Tap for Wii U : Video Games
Gamecube Controller Adapter 4 Port for Switch Wii U PC Super Smash Bros Turbo | Walmart Canada
Confirmed: The Wii U GameCube Controller Adapter will not work on DDR, Active Life, or Cyberbike | Gaming.Fit
Amazon.com: Y Team Controller Adapter for Gamecube, Compatible with Nintendo Switch, Super Smash Bros Switch Gamecube Adapter for WII U/PC with 4 Port : Video Games
raphnet. - Gamecube controller to Wiimote adapter
Nintendo Support: How to Use Nintendo GameCube Controllers
The New Wii U GameCube Controllers Are Super Hot
Gamecube Controller to Wiimote : 8 Steps (with Pictures) - Instructables
Wii U GameCube Controller Adapter Available to Order Along With 'Super Smash Bros.' GameCube Controller | High-Def Digest
![Wii U's GameCube controller will support more than just Smash Bros. [updated] | VentureBeat](https://venturebeat.com/wp-content/uploads/2014/10/wii-u-gamecube-controller-adapter-setup.jpg?fit=400%2C296&strip=all "Wii U's GameCube controller will support more than just Smash Bros. [updated] | VentureBeat")
Wii U's GameCube controller will support more than just Smash Bros. [updated] | VentureBeat
How to Use a Gamecube Controller on a Wii: 5 Steps (with Pictures)
Wii U Gamecube Controller Adapter - Brook Gaming
Mayflash GameCube 4 ports Controller Adapter for Nintendo Switch/ Wii U/PC , 電子遊戲, 遊戲機配件, 手掣- Carousell
How to: Use a Gamecube Controller for the Wii U! - YouTube
Wii U GameCube controller adaptor from third-party now available | Trusted Reviews
How to Use a Gamecube Controller on a Wii: 5 Steps (with Pictures)
These new Gamecube-style Wii U controllers are gorgeous, (almost) exactly what we wanted【E3】 | SoraNews24 -Japan News-
Lexuma GameCube 控制器連接器- 適用於Wii U, Nintendo Switch和PC USB – Lexuma Distribution
Is it possible to mod your Wii U to connect to the wireless switch GameCube controller? : r/WiiUHacks
C-stick, activate: Wii U to receive GameCube controller adapter | Ars Technica
![GameCube Controller for Nintendo Wii and GameCube [2 Packs]](https://cdn.shopify.com/s/files/1/2532/7020/files/wii-u-gamecube-controller-adapter-gadgeticloud-1_large.jpg?v=1546024066 "GameCube Controller for Nintendo Wii and GameCube [2 Packs]")
GameCube Controller for Nintendo Wii and GameCube [2 Packs]
Amazon.com: Mayflash GC Controller Adapter for Wii & Wii U (Dual Pack), White : Video Games
Best Nintendo Switch GameCube Controller Adapters | Digital Trends
