Wii U Pro Controller - Wikipedia

Nintendo Wii U Gaming System 32GB Console + Gamepad Complete Bundle Matte BLACK

Wii U 8GB White Console with Nintendo GamePad - Sam's Club

Wii U GamePad Android knock-off review

The Wii U was Supposed to Support two Gamepads, but Nintendo diverted

I've compared the prototype E3 gamepad against the retail version. Nintendo did make some changes after the E3 in 2011 when they exhibited the console. : r/wiiu

Screen Guard Fit for Wii U GamePad (Type B) for Wii U

Community - Retro - Hardware - Prototype Wii U Gamepad I recently procured.

DRC Sim - Wii U Gamepad - Apps on Google Play

Reggie Explains Why the Wii U's Dual Gamepad Promise Died + Still Believes in NFTs!

Skinomi TechSkin - Nintendo Wii U GamePad Brushed Aluminum Skin