I've got a bag of about 30 of these weird cards, and I don't know what they are. They're exactly the same size as an Apple II Parallel Interface card, but they have two thin grey ribbons coming out of them that end in a small 9-pin female connector. They fit into the slots on a IIe mainboard. I'll post some photos later, but does anyone know what this is? There's no identifying print on the card anywhere.