Famicom 15 Pin Port Question

[lifewithmatthew]

I've been messing around making an adapter for the expansion port of an American NES and noticed that all the signals for the 15 pin Famicom are present on it.  I want to test to see if I've connected everything out correctly, but so far I've only been able to find that the Famicom Basic Keyboard uses the 15 pin adapter (well all 15 pins at least).  I know you can plug in a famicom controller, but those only use 9 pins.

1) Is there a such thing as a 15 to two 9 pin splitter?

2) Is there a resource somewhere that lists all the accessories for the Famicom expansion port?

[P]

Oh are you building a new ENIO? I remember Emerson were trying to make a connector for the NES expansion port here.

1) I don't get what you mean by 9 pins? Controllers uses 5 pins each where 3 of them are shared so there are only a total of 7 pins if you connect 2 controllers to the expansion port. Are you talking about 9-pin Famiclone controllers?

2) A good number of them are listed in the NES 2.0 specification. Not all of these are using the expansion port of course.