> Looking at an SE and  Mac II motherboard, I noticed that the edge of the
> motherboard looks like it could plug into something, or have a card plug
> directly into it, but there's no hole for this in either CPU case.  Anyone
> know what this is for?

I don't know for sure, but I'd guess that this was probably for testing
during the design and production stages.

-allen

-- 
              Allen Briggs - end killing - briggs@macbsd.com