8BitDo has just announced a wireless adapter for the Nintendo Switch. This allows you to plug in both GameCube and Wii Classic controllers into the adapter, which is then wirelessly connected to the Switch. The main page lists the adapter as “lag-free”, but that’s hard to believe considering you first have to convert the controllers signal to bluetooth, which itself have the potential for lag.
The adapter will ship December 7th for $20. More information on the adapters can be found here and pre-order links are below: http://www.8bitdo.com/gbros/
8Bitdo Gbros. Wireless Adapter for Nintendo Switch (Works with Wired GameCube & Classic Edition Controllers) - Nintendo Switch
Play your Switch with your original wired controllers like Gamecube, NES, SNES, SFC Classic Edition and Wii Classic. GBros. connects your original wired Gamecube controller to your Switch just like a Wiimote. It even has built in home and screenshot ... read more(as of March 27, 2023 - More infoProduct prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on [relevant Amazon Site(s), as applicable] at the time of purchase will apply to the purchase of this product.)