'We-Love-Gadgets' of the day!
Retrode 2: A Retro Gaming Adapter For PCs
" It’s a little box that allows you to attach real Nintendo Super NES and Sega Genesis cartridges and controllers to your computer.
Once everything is hooked up, you can access the program ROM and SRAM (for game saves) on the cartridges using an emulator. A maximum of 2 Genesis and 2 SNES controllers can be connected at once — you can even use all four controllers at the same time for some wicked multi-player action. You don’t even need cartridges to play if you already have ROM images loaded onto your PC.”