Stepper Motor Driver CNC - M415 Hybrid Stepper Motor For 3D Printer

Features: 1. Working power supply 9 V ~ 42 V . 2. Maximum drive current 4 A . 3. the input signal is high-speed optical insulation . 4. provide semi-automatic current locking function . 5. built-in thermal protection and overcurrent protection . 6. Designed in a small size and convenien