ABGR-GRBL 2-Axis Control Board USB Port CNC Engraving Machine Control Board 2-Axis Control Laser-Engraver Control Board _x000D_ _x000D_ Specification:_x000D_ Connection: USB (USB-CH340)_x000D_ Software: GRBL controller, Universal GcodeSender_x000D_ Master chip: atmel 328P (arduino nano)_x000D_ Stepper motor driver: A4988_x000D_ _x000D_ Color: Black_x000D_ material: plastic_x000D_ Spindle drive chip: MOSFET, the highest 60V (recommendation within 48V, current :within 10A )_x000D_ Support stepper motor: 12V, maximum current of 2A or less is recommended within 1.5A and additional heat. (Any stepper motor 42, 57)_x000D_ Laser-engraving: Support_x000D_ Engraving machine suitable for this control board:_x000D_ 3018pro-METAL Engraving Machine_x000D_ CNC 3018 pro laser-Machine_x000D_ CNC 1610 DIY laser-Machine_x000D_ CNC 3018 Pro Max laser-Engraver_x000D_ CNC 2418 DIY Engraving Machine_x000D_ _x000D_ Package Contents:_x000D_ 1x GRBL 1.1 J 2 axis control board_x000D_ 1x USB cable_x000D_ _x000D_ Only the above package content, other products are not included._x000D_ Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm._x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_