[tjakab]

That was the secret expansion port that some third-parties made accessories for anyway. I recall it was gone by the Rev-B model.

[detourdog]

Yes, I still have it with a CD-RW, DVD-RAM, Scanner, APEX 4.6 Optical Drive.

I haven't booted since maybe 2005 and I'm starting to wonder if there is battery on the motherboard I should remove.