Honey bee Adapter for (SFC/MD)

I've seen these over the years, I don't know if anyone has used one for their SNES or Genesis. But which system is it originally meant for? I know it's suppose to play PAL/JPN on a US system, but some say its vice versa.

honeybee is the greatest convertor in the world i had a chance to buy a box full of mint conditioned nes ones damn me was a fool then you can get it for anything from nes too snes