Can you hook it up to let us know if it works for sure because if it gets to the winner and doesn't work then the winner can ask for a refund and that would be a waste of your shipping cost. Thank you in advance!
As most people have noted, this is Sega Master System or SMS for short. And just noting this is not a Genesis. It came before the Genesis (which is a 16 bit console). This is an 8-bit console like the NES (the other 8-bit console). It was technically superior to the NES, but didn't sell nearly as well. Anyway, great auction, I'll be watching :)