Description: Description: The driver board can drive brushless motors, CD-ROM brushless motors, and so on. It supports 3-wire or 4-wire brushless motors without Hall sensors. It features reverse voltage protection, overcurrent protection, and phase control. Drive Voltage: DC7-12v Working Current: 1.2A Speed Adjustment: 0%-100% Note: The brushless motor wires connected to the terminal unit must be pressed firmly; poor contact will cause malfunction and burn out the chip. Secure the terminals on the board with screws and use thicker wires to connect to the board. How to Identify the Four-Wire Motor Public Port: Use the resistance gear of a multimeter to test the resistance between the four-wire terminals. One of the terminals will have the smallest resistance value with the other three terminals. This is the public port. Size: 6 x 4.5 cm / 2.36 inches x 1.77 inches Quantity: 1 pc Color: Green Material: Plastic Note: Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package Contents: 1 pc x DC Brushless Motor Driver Board Controller Only the above package content is included; other products are not. Note: Light and different displays may cause the color of the item in the picture to be slightly different from the real thing. The allowed measurement error is +/- 1-3 cm.