Description: 0.2-5A CNC Engraving Machine Stepper Motor Driver Controller Single Axis. Specification: -Automatic idle-current reduction. -Supply voltage up to 50V DC. -Output current up to 5.0A. -High speed optoelectronic isolation signal input. -Single-chip PWM bipolar sinusoidal chopper ensures low vibration and high efficiency. -1, 2, 4 (New Mode), 8, 16 adjustable microstep control, motors run more precisely and smoothly. Features: 1. Equipped with the 3rd generation of breakout board, display panel and control pad to control the motor manually. 2. Overload, overcurrent, overheat, overvoltage and undervoltage protection to avoid damaging your computer and devices. 3. Cooling Aluminium Box Design for Cooling, and protect the driver board from being damaged by dirt, dust or other liquids. 4. Moreover, the brand new design with BiCD0.13 (50V) process technology on the chipset also ensures maximum 5.0A output current and 50V output withstand voltage. Package Included: 1 x CNC Engraving Machine Stepper Motor Driver