Features:1. This Contoller Kit includes CNC shielded V3.0 + for board + for Nema 17 stepper motor + A4988 stepper motor driver + heat sink.2. CNC Shield V3.0 - the latest version 3.0, compatible with GRBL 0.8c, supports 4 axes, each axis has 2 end stops.3. Compact design - The stepper motor can be connected or soldered into place with a 4-pin connector.4. Stepper Drive - Use a detachable A4988 compatible stepper drive with jumpers to set the microstepping for the stepper drive.5. Includes stepper motor - for Nema 17 model, holding 26Ncm (36.8oz.in), 12V / 0.4A and 1.8 degree angle (200 steps / rev).Specification:Condition: Brand New and High QualityMain Material: ABS + MetalWeight: approx. 360gPackage List:1 * CNC Shield V3.01 * for board4 * A4988 driver1 * USB cable1 * Stepping motor.Note:Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.