Shop name:Chong Qing Shuo Yue Ke Ji You Xian Gong Si Features: 1.MA MB phase line output connection motor 2. 5V GND motherboard comes with 5V supply (current does not exceed 30MA) 3.VCC GND motor main supply (external DC supply) 4. speed signal output 5 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 +5V GND Hall signal input, generally with Hall's motor has corresponding lines Full process Stable performance with positive/reverse function Motherboard specifications: Product Name: 400W Brushless Hall DC Motor Driver Number: ZS-X11D1 Operating voltage: 6-60V Maximum current: rated 16A 20A : 400W Overcurrent protection: Yes Product size: length 63MM x width 45MM x height 31MM Weight: about 73g. colour:as shown Material: ABS Package Contents: 1 x Motor Controller Only the above package content, other products are not included. Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.