A4988 3D printer stepper motor driver Reprap laser engraving machine drive motor

Dimensions: 1.5mmX2mm (for RAMPS, ultimaker or other compatible board);
      Can drive current: 2A (best to install the heat sink, heat sink will be included need to be installed)
      Subdivision: 1,1 / 2,1 / 4,1 / 8,1 / 16

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