This double heading board lets one hand control [potentiometer] or radio control receiver operate two independent motor controllers. Designed to allow easy plug and play implementation of double-heading aka multi-unit [MU] operation. It can also be used as a convenient way to switch between wired and RC control of a single DNO / Pro-120 / 150 controller.
![Double heading [or MU] board.](https://www.4qd.co.uk/wp-content/uploads/DHB-202-2-500x450.jpg)