Description: Safe: Motor line will not burn the chip, you can rest assured at will operation. Protection: The driver has voltage reverse connection protection, over current protection, protection, simple wiring. Voltage: The hard disk motor can be turned with the voltage of 7-12V. The higher the voltage, the faster the speed, which can reach about 10000 revolutions. Stable Performance: This product is professionally manufactured, so it has stable performance. Application: This driver board can drive the hard disk brushless motor, drive brushless motor and other miniature 3 wire or 4 wire Hall brushless motor. Specification: Color: As Shown. Material: Metal. Size: Approx. 6.4x4.7x1.6 cm/2.51x1.85x0.63 inch. Drive Voltage Dc 7-12v Operating Current 1.2a Speed Control Range 0%- Note: There might be a few color distortions due to different resolutions. There might be a slight error due to different hand measurements. Package Includes: 1 Piece Driver Board.