thanks again for the reply, I asked the seller and he said it will work....so I purchased it and now I wait for it to get here so i can put err in. I hope it works. I will reply back when I put it in the Dreamcast to let everyone know.

anyone? Or by hardware were you meaning internals too?

Not the controller, the controller port
http://www.ebay.com/itm/Sega-Official-D ... Track=true

thanks for the reply

Will a Japan model controller port work in my american US model DC?