Super Smash Bros. Ultimate supports Nintendo GameCube controllers, the preferred gamepad for Nintendo’s flagship fighting series. GBros., a new wireless option from 8bitdo, will also be compatible with the upcoming game. Set to launch on December 7, the $19.99 device allows you to plug your GameCube controller into the adapter, and it connects wirelessly to your Switch. According to the manufacturer, the adapter has 30 hours of battery life and has both a Switch home and screenshot button. You can pre-order the GBros. on Amazon now.
Source: The Verge