All I see on ebay and Amazon are the newer 3rd party cables. Anyone who has an original one that Sega manufactured and sold for use with the Master System 1 or Genesis 1 and would like to sell it, I can pay with paypal. Shipping would be within United States and I am ok with bubble mailers and cheapest shipping for something like this.

If you have a price in mind let me know. Otherwise just let me know you have one and I'll make an offer you can haggle with.