With 2 slides, 3 types freely transfer switch between Compatible With Nintendo Switch, Wii U, and PC. Switch to Compatible With "Wii U" or "PC" mode by using the switch located on the side. Small Size allowing you to use it for you switch, PC, and take it on the go.
eBay
TicKnot 4 Ports Game Controller Converter For GameCube GC Gamepad USB Adapter For PC/Wii U/Switch Console With Trubo Function
Aliexpress UK
Supports the for GC/ Wii Emulator Dolphin. Nintendo Switch 4port To USB Wii U PC 3 In 1.
eBay
4 Ports Game Converter for GameCube GC Controller USB Adapter for Nintend Switch NGC/Wii u/PC Star Fighting Support Dropshipping
Aliexpress UK
Switch to Wii U or PC mode by using the switch located on the side. Compatible with Windows XP, Vista, Windows 7, Windows 8, Windows 10 and more, and Mac OS under the PC mode.
eBay
US/EU Plug AC Charger for Nintendo Wii U Controller Gamepad Joystick 100-240V Home Wall Power Supply Adapter for WiiU Game Pad
Aliexpress UK
Supports the for GC/ Wii Emulator Dolphin. Switch to PC mode by using the switch located on the side.
eBay
4 Ports Game Converter for GameCube GC Controller USB Adapter for Nintend Switch NGC/Wii u/PC Star Fighting Support Dropshipping
Aliexpress UK
USB connection for the Wii U / Switch console.
eBay
Mini 8BitDo Retro Receiver For SNES SFC Snes Version Bluetooth Adapter Compatibility With PS3 PS4 Wii U Pro Controller Gamepad
Aliexpress UK
eBay
4 Ports Game Converter for GameCube GC Controller USB Adapter for Nintend Switch NGC/Wii u/PC Star Fighting Support Dropshipping
Aliexpress UK
USB connection for the Wii U / Switch console.
eBay
AC Charger Adapter for Nintendo Wii U Gamepad Charging Cable Controller Joystick EU Plug Home Wall Power Supply for WiiU Pad
Aliexpress UK
With 2 slides, 3 types freely transfer switch between Nintendo Switch, Wii U, and PC. Switch to "Wii U" or "PC" mode by using the switch located on the side.
eBay
UK Plug AC Charger Adapter for Wii U Gamepad Controller Joystick 100-240V Home Wall Power Supply
Aliexpress UK