Things You'll Need
Instructions
Connect the SNES controller to the SNES port on your controller-to-USB adapter.
Connect the USB cable connected to your adapter to an available USB port on your PC. Wait for your PC to recognize the new hardware. A box should appear to notify you that drivers for your hardware are being installed.
Follow the appropriate installation prompts after the PC detects the new hardware. Afterward your PC will recognize your SNES controller as a game controller.