Thanks for the tips.

I did look at the Wayback machine and found their website and mention of the card but there was no documentation posted.  There was a link to their drivers but the link pointed to an FTP site that doesn't work (and Wayback doesn't archive).  I think I found the drivers in Mac Driver Museum here: http://www.3rz.org/mirrors/macdrivermuseum/network.shtml.

I cracked it open last night and the two wire go to two locations marked "AC IN".  I will certainly need to do some more detective work because if it's AC, the universal wall-wart I have is no good.

I'll try to post a pic later tonight if nobody has the answer.

Thanks.