Toggle to switch XYY/ axis work, toggle the power switch, safe and efficient.Integrated drive to prevent short circuit of the chip, integrated heat sink. With Fan, have better heat dissipation.Support: offline controller, external high-power drive, emergency stop, reset, continue, pause, limit switch interface, which can meet different needs. Both the data transmission chip and the main control chip use an external crystal oscillator, the transmission operation is more stable. Acrylic , beautiful appearance, protect the motherboard.Can be used for Laser-Engraving Machine, Drawer Machine, CNC Engraving Machine, etc. Colour: blue Material: metal + plastic Package Contents: 1 x CNC Mother Board Only the above package content, other products are not included. 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.