8Bitdo GBros.has a new wireless GameCube Controller adapter
8Bitdo Gbros Adapter for Nintendo Switch (Works with Wired Gamecube & Classic Edition Controllers) - Stone Age Gamer
Review of the 8BitDo Gbros. Wireless Adapter for Nintendo Switch - Nerd Techy
8Bitdo GBros (Wireless Switch Adapter for Gamecube Controller) - us.MaxGaming.com
Restored 8Bitdo Gbros. Wireless Adapter for Nintendo Switch Works with Wired Gamecube & Classic Edition Controllers 83GA (Refurbished) - Walmart.com
GBros. Adapter | 8BitDo
Make Your Gamecube Controller Wireless For The Switch! GBros Adapter From 8Bitdo! - YouTube
8Bitdo Gbros. Wireless Adapter for Nintendo Switch for sale online | eBay
8Bitdo Gbros. Wireless Adapter for Nintend Switch for GameCube for NES/for SNES/for Wii Classic controller|Replacement Parts & Accessories| - AliExpress
GBros. Adapter | 8BitDo
Hardware Review: 8BitDo GBros. Adapter - Use Your GameCube Pad Wirelessly With Smash Bros. Ultimate | Nintendo Life