This works with a Super Serial Card, and _may_ work in a //c on it's built-in ports. I don't have my //c reference handy, although I think it uses the 6551 chip (like the SSC), unlike the IIGS which uses the SCC 8530. You can force the 8th bit LOW by using what is called 'Space' Parity. For example, set the sender's Serial Port to 7 databits, 1 stop bit, and 'Space' parity. This will communicate with a receiver set up for standard 8 bit reception. On the Super Serial Card, the command sequence from BASIC would be: 1D 7P If your command character is , use that instead. This will _not_ work on a IIGS, because it doesn't support 'Space' Parity. Go ahead and try it. It shouldn't hurt anything even if 'Space' Parity is not supported. Hugh...