It was tested with a controller (have only one, of course, an original), Donkey Kong 64, Mario Kart 64 and 2 emulators, namely sixtyforce and Project 64 (via Crossover as a Windows program).
With sixtyforce configuring went without problems, at Project 64 you need in the settings to another controller plugin select (NRAGE) and a bit "at the controls Slide", then it works also.
I recommend to anyone who wants to play the classics again only recommend to buy this adapter, the game is stunning :)
