The driver board can drive brushless motors used in hard disk drives, CD-ROM drives, and other miniature 3-wire or 4-wire brushless motors without Hall sensors. Features: 1. Reverse voltage protection 2. Over-current protection 3. Simple wiring and easy to use 4. Compatible with miniature 3-wire or 4-wire brushless motors without Hall sensors Specifications: Drive Voltage Range: DC 9 V–12 V Suggested Operating Voltage: 9 V–12 V Maximum Current Rating: 1.8 A Typical Operating Current: 1.2 A Speed Control Range: 0%–100% Phase Inversion Control: Supported Reverse Voltage Protection: Supported Over-Current Protection: Supported Weight: Approx. 24 g Package Includes: 1 x Motor Driver Board Note: Ensure secure and firm connection between the brushless motor wires and the driver board. Poor connections may cause damage. Use appropriately sized wires to ensure proper contact with the screw terminals. This product is supplied in either the latest or previous version at random. Please order only if you accept this variation.