... provides quite enough power to hard work. For the NC control system, including CNC interface board, three stepper drivers, provide quite ... as STEPPER FREE, EMERGENCY STOP, LIMIT/TOOL ADJUST SENSORS, SPINDLE CONTROL, HALF DRIVE CURRENT, OVER-THERMAL PROTECTION, etc. About its performance ... still very compact. You dont need to have a extra control box or power supply at all, just turn on the power ...