Loading... Please wait...8 Channel servo driver board for R/C type servo motor controller for standard servos drawing up to 600mA. Requires eight DMX channels and generates servo control pulses selectable either for standard range servos (ie pulses between 1-2msecs) giving a nominal range of 90 degrees rotation and extended range servos (pulses between 0.5-2.5msecs) for a nominal range of 180 degrees rotation.