4. Undervoltage protection to prevent the module from being burned by instantaneous high current; 3. The signal optocoupler isolates the input, which can be directly controlled by IO port without interference; 1. Double H-bridge, which can drive two DC motors at the same time, with single channel of 7A current and high power; 2. Wide voltage input 6.5V~27V; 5. High-power and electrostatic discharge circuit suppress transient interference pulse and static electricity, enhance EMC performance, and the product is stable and reliable, with industrial design., Manufacturer: Akfldms