3DV4 CNC Shield V4 Engraving Machine Kit A4988 Stepper Drivers AB31

3DV4 CNC Shield V4 Engraving Machine Kit A4988 Stepper Drivers Features: The extension board can be used for carving machine, 3D printer driver expansion board, a total of 3 way of stepping motor driver module slot, can not into the motor drive 3 road, and every step motor all the way only need two IO mouth, that is to say, 6 IO mouth can be very good management three stepper motor, use rise very convenient CNC shield V4 engraving machine expansion board 3D printer A4988 driver board Note: Nano and A4988 driver module do not inserted in the wrong direction, otherwise it will damage your hardware! Package Content: 1 x Nano (with USB cable) 3 x A4988 stepper motor drive 1 x V4 engraving machine expansion board