Product Name: CNC Shield V4 A4988 Controller for Ramps1.4 Reprap 3D Printer Vq2305 Model NO.: VQ2305 Transport Package: OPP Bag Origin: China Product Description CNC Shield V4 A4988 Controller For RAMPS1.4 Reprap 3D Printer VQ2305Product Description1.3 axis stepper motor driver, compatible with micro-drive laser engraving machine, three-axis CNC engraving machine.2.2A can be controlled within the two-phase four-wire stepper motor.3.Released the digital IO interface, easy to connect to other modules, such as ENDSTOP.4.Released the I2C interface, you can connect to the LCD I2C or other I2C module.5.Power DC5V interface, 7.5-12V voltage input. It is compatible with GRBL.6.This board as a driver expansion board, can be used for engraving machines and 3D printers. 3 axis stepper motor driver, compatible with micro-drive laser engraving machine, three-axis CNC engraving machine. 2A can be controlled within the two-phase four-wire stepper motor. It is quiet convenient to use.