Application: DIY engraving machine, laser engraving machine, writing robot, support secondary development, open source data, so you need to use computer, or Arduino control motor, APP switch, you can consider using me. Advantages: talking about the actual adjustment of the laser assist software, low light, simpler and more stable than buying various accessories. One board contains devices, no additional USB connection to the drive required, notebook available12V power supply, stepper motor is shared with laser, Arduino is powered by USBApple to ordinary 42 stepper motor in 2A current (two hatchback and four lines)Suitable for 10W,12V.5V laser moduleSupport 48V.400W spindleCompatible control software: micro-carved housekeeper, micro-carving high-speed map, Grbl controller, grblControl,CNC USB,CNCC,BenBOX, micro-carving masterCompatible design software: AutoCAD,CorelDraw,ArtCAM,Inskcape, engraving and photo editing software such as Meitu XiuxiuSize: 7.9x7.3cm/3.11x2.87inchNote:Please allow 1-3mm error due to manual measurement. pls make sure you don't mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package Included:1x GRBL Laser Driver Board1x USB Cable8x Wires