Want to enjoy them classic Sega Master System games on your Genesis? Well, that's easy. All you need will be a Power Base Converter from eBay. Yes, it's the one shown above, plays both SMS cartridges and carts, and, well, you can find out mote here. Seller ships worldwide, but should you prefer something cheaper for your 8-bit gaming needs try a free SMS emulator like the brilliant MEKA.