Game Boy Communication Cable Approximately 1.2 meters - Type: Game Boy Link Cable - Connector Type: Game Boy Battle Connection Cable - Length: Approximately 1.2 meters - Color: Black and Gray Found while organizing. I believe this is a communication cable for connecting two Game Boys. Since it's unclear and the operation hasn't been confirmed, please refrain from purchasing if you are unsure. I probably won't be able to answer any questions. No returns or claims accepted. Thank you for looking.