Features 1、ADAPTED MOTOR: Stepper motor driver is suitable for outer diameter 57 to 86mm series stepper motor, check the size for better using experience! 2、SAFE TO USE: Equipped with overcurrent, overvoltage, undervoltage, phase error, encoder error, and position error protection, safe and reliable to use. 3、EXCELLENT PERFORMANCE: The characteristics of low vibration, low noise, low temperature rise, and quick response of the motor driver will definitely meet your requirements. 4、ALUMINUM ALLOY MATERIAL: Made of premium aluminum alloy material, this step motor driver is strong and sturdy, has a fast heat dissipation and long service life. 5、APPLICABLE INDUSTRY: Stepper motor driver is suitable for 3D printer, packaging equipment, textile equipment, robot, etc. Specification Item Type: Stepper Motor Driver Mode: X86 Material: Aluminum Alloy Drive Current: 2.4-7.8A Drive Subdivision: 400 to 51200, 16 gears Adjustable Pulse Frequency: 200KPPS Adapted Motor: Outer diameter Approx. 57 to 86mm / 2.24 to 3.39in series stepper motor Package List 1 x Stepper Motor Driver