Switch to switch XYY/axis work, turn on/off the switch, safe and efficient. Built-in drive to prevent chip short circuit, built-in heat sink. With fan, has better heat dissipation. Support: Offline controller, external high drive, emergency stop, reset, continue, pause, limit switch interface, which can meet various needs. The data transmission chip and the main control chip use external crystal oscillator, the transmission operation is more stable. Acrylic shell, beautiful appearance, protects the motherboard. Can be used for engraving machine, plotter machine, CNC engraving machine, etc. Color: blue Material: metal + plastic Package Contents: 1 x CNC Motherboard Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture to be slightly different from the real thing. The allowed measurement error is +/- 1-3cm.