1. Toggle to switch XYY/ axis work, toggle the power switch, which is safe and efficient. Integrated drive to prevent short circuit of the chip, with an integrated heat sink. 2. With a fan, it has better heat dissipation. It supports an offline controller, external high - power drive, emergency stop, reset, continue, pause, and limit switch interface, which can meet different needs. 3. Both the data transmission chip and the main control chip use an external crystal oscillator, making the transmission operation more stable. 4. It has an acrylic shell, which has a beautiful appearance and can protect the motherboard. It can be used for Laser - Engraving Machine, Drawer Machine, CNC Engraving Machine, etc. 5. Colour: blue 6. Material: metal + plastic 7. Package Contents: - 1 x CNC Mother Board - Only the above package content, other products are not included. 8. Note: Light reflection and different displays may cause the color of the item to be a little different from the real thing. The measurement allowed error is +/- 1 - 3cm.