Nintendo Support: How to Charge the Wii U Pro Controller
Wii Classic Controller Adapter for PC USB Mayflash - Newegg.com
Adapter allows for DualShock controllers to be used with Wii U/Wii - Nintendo Everything
The Raphnet Wii Classic Controller to USB is the real del. It's seriously as good as a Wired Xbox 360 guitar. Legitimately buy one of these if you have a Wii Guitar.
wusbmote: Wiimote accessory to USB adapter
USB Wii Classic Controller : 14 Steps - Instructables
Adapter allows for DualShock controllers to be used with Wii U/Wii - Nintendo Everything
HYPERKIN Tomee Charge Cable for Wii U Pro Controller (12')
How to Sync a Wii Remote to a Wii or Wii U
Massive's gamecube adapter driver dev blog | Wii U GCN USB Driver
raphnet. - Wusbmote: Wiimote accessory to USB adapter
raphnet. - Classic controller to USB adapter - V2
USB Wii Classic Controller : 14 Steps - Instructables
wusbmote: Wiimote accessory to USB adapter
Amazon.com: JC-W01UWH
Ten things that surprised us about the Wii U hardware (updated) | Ars Technica
How to use a Classic Controller (Wii or NES/SNES Classic) on the Switch : r/NintendoSwitch
wusbmote: Wiimote accessory to USB adapter
raphnet. - Classic controller to USB adapter - V2
The Adapter Factor HD - Mayflash Wii Classic Controller Pro to USB Review - YouTube
How to Connect a Nintendo Switch Pro Controller to a PC | PCMag
Wii U | Hackaday
raphnet. - Wusbmote: Wiimote accessory to USB adapter
Wii Classic Controller to PC USB Adapter
raphnet. - Classic controller to USB adapter - V3
Wii - Dual Port Classic Controller to USB Adapter - Walmart.com