Features: This driver board can be fit for DC brushless with hall sensor three-phase motors. It was with an heat sink,and also coming with speed controller and forward-reverse switch cable. This brushless motor controller features wide voltage high power, suitable for both small motor and large motor. This motor controller has the function of over-current 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 convenient. Specifications: Working voltage: 5-36V Maximum current: 16A Maximum power: 350W Over current protection: yes Size: length 63 x 45 x 27mm/2.48 x 1.77x 1.06inch Weight:100g Interface instruction: 1.MA MB MC: phase line output connection motor 2 5V GND: motherboard comes with original 3.VCC GND: external DC power supply line 4.SC :pulse signal output 5.Z/F: positive inversion control line 5V or GND to achieve positive and negative inversion 6.VR: speed signal input, the general external 100K tripod middle pin potentiometer VR, the remaining two feet 5V and GND main board. Package included: 1 x Brushless with hall motor controller 1 x Speed controller & forward-reverse switch cable 1 x Power cable .