This module is fully compatible with A4988 board extra standby function you can reduce the heating between drive and motor; Maximum drive current: 2A; Features: 1 Low RDS (ON) outputs; 2 Automatic current decay mode detection / selection; 3. Mixed with slow current decay modes; 4 Synchronous rectification for low power dissipation; 5. Internal UVLO; 6 Crossover current protection; 7 3.3 and 5 V compatible logic supply; 8 Thermal shutdown circuit; 9 Ground Fault; 10 Load short-circuit protection; 11 Optional step five modes: full 1/2 1/4 1/8 and 1/16