This controller is based on a PCB designed by Alain Kinlough, who wanted a feature rich controller, but felt he had no need for the 3rd and 4th drivers. Alain also used surface mount devices SMD). This attracted me as I wanted to work with this technology.
Here's the controller being tested before being shipped to a fellow from Central Europe who was a beta tester. He specified screw terminal connectors. Which are available on the control as an option to 90° or 180° RJ connectors.