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Beige G3: which personality card?

Hello all. I'm building a Beige Power Macintosh G3 from parts of a couple of machines. I ended up with two personality cards and am unsure which would be the better card to install. As I understand it, one is the Whisper (820-0972-A) and the other is a Whisper 2 (820-0922-A).

I can't locate a datasheet for either of these so I'm unsure which would be the better option to install. The 820-0972-A has AIO connectors which as far as I know have no use in the beige desktop. What is the smaller connector on the 820-0922-A for?

Not looking to do a USB mod at the moment, if I were going to do that, I think I'd track down a Wings or Bordeaux. I have a 2-port PCI USB card in it already. Sorry if this message is too off topic, but it seemed the only place I was seeing the discussion about these personality cards. Thanks for any information anyone has to offer.
 

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