Peter, Did you ever find out anything about this card, other than the technical description that someone posted? I THOUGHT I might have a manual for it and I went looking for it today but didn't find it. (I'm still looking). However I did find an Infotek manual for a 2Mb memory board for the 9000 200s. It says that Infotek is a division of ALS Corporation and their address was 1400 N Baxter St, Anaheim, California. This manual is dated 1985 so they may or may not still be around but it might help in your search. I think there are several list members in that area, maybe you can get one of them to search locally. I have several Infotech devices including ROMs for the 9825, 9845, a memory card for the HP IPC and a couple of these 2Mb cards for the 9000 200 computers so I'd like to try and track them down too. One thing that prompted me to look for the manual is that I'm working with Bob Shannon on HP 1000s and he has a card for the 1000 that sounds like it's exactly the same thing in a different form factor. Even the specs look the same. We're trying to figure out how to program, trigger and read it and I'm guessing that that will be the same for both HP cards and your Infotek card. Joe or perhaps a D/A card. HP made some A/Ds I think I have some docs on it somewhere. I used to have one the cards I never got around doing anything with it. I never even pulled it out of the machine so I don't know if it was made by HP or if it was made by someone else. IIRC it had a row of screw terminal on the back side of it. I looked through the manual for the HP A/D card at one time and I don't think it took any special software. The system treated it somewhat like a GPIO card but the digital value that was input was converted from the analog input. If you output a digital value to the card it selected the channel number (12 channels as I recall) and range. If you think your card may be a A/D, I'll try to find the docs that I have.