Features: This driver board can be adapted to minus DC brushes with three-phase Hall effect sensor motors. It was with a heat sink, and also with a speed controller and a front-to-back switch cable. This brushless motor controller features high power at high voltage, suitable for small motors and large motors. This motor controller has the function of overcurrent protection. This item can be used directly, when you got it, wide voltage 5-36V, high power 350W, with heat sink, lead wire, control switch, so practical. Specifications: Operating voltage: 5-36V Maximum current: 16A Maximum power: 350W Overcurrent protection: yes Size: length 63 x 45 x 27mm /2.48 x 1.77x 1.06inch Weight: 100g Interface instruction: 1.MA MB MC: 2 5V phase line output connection motor GND: motherboard comes with original 3.VCC GND: external DC power line 4.SC: 5.Z/F pulse signal output : 5V positive inversion control line or GND to achieve positive and negative inversion 6.VR: speed signal input, the 100K VR tripod center pin external general potentiometer, the remaining two feet 5V and the main board GND . Package Included: 1 x Brush less with hall motor controller 1 x Speed controller forward-reverse switch cable 1 x Power cable