The low latency ensures the best retro experience when using your NES controller on your favorite PC or Mac titles. Simply plug your controller into the NES port on the adapter, then insert the USB plug into your computer. Use your NES controller on PC or Mac with the Tomee NES to USB Controller Adapter. Even if you don’t have an iOS 7 controller, it’s fun to play with! How do I use my NES controller on my PC?
Go to Options > Joypad > configure > 1.