Twotrees TB6600 Stepper Motor Driver 4A 9-42V CNC Controller for 42 57 86 Stepper Motor Nema17 Single Axes Phase Hybrid Stepper Motor for CNC Arduino 3D Printer (3PCS)

9V-42V DC power supply, H bridge bipolar constant phase flow drive.

The maximum 4.0A of the eight kinds of output current The largest 32 subdivision of the 6 models are optional.

Energy-saving semi-automatic current lock function, built-in temperature protection and over current protection.

Can control 2 phase stepper motor forward and reverse rotation, With 1-2, W1 -2 , 2W1 -2, 4W1 -2 phase excitation mode.