I dont understand the parallel conector. I understand the $5 serial one. (I would have made that one but I do not have a wire for it, I do not want to waste away my TI-TI calc link) I don't know what you mean by a socket connector. Are you talking about an adapter where One end of it goes in the computer and the other is pluged in through the TI-TI link wire? <pre> -- Enrico Ng <ng@usa.net> </pre>