Things You'll Need
Instructions
Connecting SNES Controller to Computer
Insert the connecting end of your SNES controller into the non-USB end of the SNES-to-PC USB adapter. The SNES end of the adapter will be much wider than the USB end.
Connect the USB end of the adapter into the USB port located on your computer. The port will be small and rectangular and can be identified by a branch-looking symbol.
Turn on your computer. If everything works correctly, your computer will automatically install drivers for your SNES controller to work on your computer. If drivers don't install correctly, your computer will display it. If this is the case, find the manufacturer of the SNES-to-PC USB adapter you are using and contact their website for drivers to install.
Your SNES controller should now be ready to play on your computer. You should now be able to enable and configure your controller using your emulation or computer game menus to your liking.