GRBL CNC One-piece control board, three-axis drive + spindle drive, can directly drive the three-axis system + spindle power control, eliminating the need for electrical connection, suitable for ordinary engraving machine and engraving machine, DIY essential Spindle drive chip: MOSFET, the highest 60V (recommendation within 48V, current :within 10A )Support :12V, maximum current of 2A or less is recommended within 1.5A and additional heat. (Any 42, 57)Colour:Photo ColorMaterial:plasticPackage Contents:1 x GRBL Engraving Machine Control Board SetOnly 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.