Question about PDP Wired smash pad Pro - Mario

Hi.
Yes it is compatible. This controller is shaped like a Gamecube controller but is still a Switch controller (very nice to play, especially for competitive games like Super Smash Bros or others). However, the connection is USB (not like the Gamecube controllers) and the Switch unfortunately only has a USB input. So I also recommend buying a USB power strip which can be very useful when using this type of controller.
Have a nice day.