Features: 1.MA MB phase line output connection motor2. 5V GND motherboard comes with 5V supply (current does not exceed 30MA)3.VCC GND motor main supply (external DC supply)4. speed pulse signal output5 positive and negative reversing control interface (also can be connected to the external switch)VR speed control signal input (onboard with potentiometer speed control can also be connected to 0-5V analog simulation PWM duty cycle to support dual signal input speed regulation)Ha Hb +5V GND Hall signal input, generally with Hall's motor has five corresponding linesFull patch process Stable performance with positive/reverse functionMotherboard specifications:Product Name: 400W Brushless Hall DC Motor DriverModel Number: ZS-X11D1Operating voltage: 6-60VMaximum current: rated 16A 20A: 400WOvercurrent protection: YesProduct size: length 63MM x width 45MM x height 31MMWeight: about 73g.colour:as shownMaterial: ABSPackage Contents: 1 x Motor ControllerOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.