Are there any Jamma 4 slot motherboards?

Alright- I'm hoping someone can clear this up. I don't want to steer anybody in the wrong direction. I received these quotes over an auction I'm maintaining. The auction is for a Japanese Region 4 slot Neo Geo Motherboard. I'm 99% certain japanese 4 slots motherboards are MVS (Jamma edge connector).

Q: Just want to make sure that it is JAMMA as Japanese 4 slots are and it is going into a japanese canday (MVS) cab. it needs to be JAMMA without an adaptor please confirm what the title of your auction says because the body of the text says you need an mvs to jamma adaptor please explain. Nov-21-08
A: I'm not sure exactly what you mean- so please ask again if you need more clarification. MVS hardware uses the same connection edge as JAMMA but will not work 100% in a JAMMA Cabinet. The MVS standard handles sounds (stereo), the switcher button, maybe button 4 somewhat differently than standard JAMMA. Please see http://www.jammaboards.com/store/neogeo-mvs-to-jamma-adapter/prod_198.html for the adapter I'm talking about. If you have a cabinet pre-wired for MVS- you do not need this adapter.

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So that A was me. Now- I get this back from the same guy:

No my cab is wired for JAMMA. Your auction states that this is a JAMMA board. Then it says you will need an adaptor to play on a JAMMA cab. FYI if you put the Japanese bios in an American 4 slot board then you should say so but saying that it is JAMMA in the title and then that it has Japanese bios is confusing, because the Japanese 4 slots are 100% JAMMA and need no adaptor. I am sure you know this as you obviously put your jap bios from your jamma board (which you are keeping) into an american (nonJAMMA) 4 slot which you are selling.

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I'm having trouble taking it in- and I don't want to steer anybody in the wrong direction and upset anybody. Am I completely off base in assuming this guy might not understand what he's talking about and perhaps he's thinking that the BIOS chip determines whether or not it's Jamma or MVS? The only thing I can think of is the fact that I took pictures of the device in the Dynamo HS-5 and not the US 4 slot or Neo29 or something?


-Confused as crap.

Everything is Jamma except the audio, standard jamma cabs are mono, multislot mvs are stereo. Basically there is a adapter if your to lazy to reconfigure your cab for this slight difference in audio connections, I have one. In addition a standard cab harness will not be wired for button D

Technically the Neo Geo multislot boards are JAMMA+ (JAMMA plus a couple of extras... like stereo speaker wiring and extra buttons)

They have extra buttons that your cab's wiring harness may not be wired up for and the audio wiring is a little different.

If you don't have all the buttons on the control panel check your harness and JAMMA connector to see if the wires are already there or if you'll have to add the wires for the extra buttons.

Manuals and wiring diagrams are available at http://www.hardmvs.com

Bottom line: All multislot boards are JAMMA+ and have no switches to output mono audio like some of the 1 slot boards.

RJ

there is also a site that sell a adtpor to go frm standard jamma to the mvs style jamma + let me search a little and ill get the site

I use one of those adaptors and its fine.