Roland MCB-10 MIDI Connector Box ************************************************** MCB-10 is a MIDI Connector Box for Roland RAP-10 (ATW-10). The MCB-10 connects to the Joystick port on your RAP-10 card and will allow you to connect external MIDI devices like a MIDI keyboard or extra sound modules. A Joystick port on the MCB-10 box makes it possible for you to use your joystick even when MCB-10 is connected to your RAP-10 Specifications and appearance subject to change without notice. All products and brands are trademarks and registered trademarks of their respective companies.