Features 1、The controller is integrates with soft rectifier function. 2、With over current protection and reverse connection protection. 3、The board can control the motor speed during 5~100%. 4、With a potentiometer to adjust the speed of the motor. 5、The controller board can also control the rotation direction of the motor. Specification Item Type:Motor Driver Board Working current: ≤ 3A Speed range: 5%-100% Drive power: 30W Wiring instructions: 1. Control terminal: ZF: Motor rotation direction control terminal, grounding or 5V can change the direction of the motor (can be left, the steering is fixed) GND: shared control terminal 2, the output: Power - : Power ground, then power negative MA / U: Turn off every three wires of the motor MB / V: every three lines of the motor MC / W: every three lines of the motor Package List 1 x Brushless Motor Driver Board 1 x Speed Adjuster + Positive and Negative Switch 1 x 5Pin Output Control Cable(Random Color)