This control board is a 32-bit MCU control board, which runs faster, the maximum no-load speed reaches 40000mm/min, the algorithm is optimized better, the vibration is smaller when the machine moves at high speed, and the performance is more stable; Using the Type-C USB interface, it is more convenient to use and the data transmission is more stable; One-piece integrated drive PWM output frequency 10kHz, higher engraving precision and clearer details Y-axis dual drive, stronger drive capability; Support USB automatic identification, when plugged in USB and connected to the computer, the offline interface is automatically shielded to avoid offline interference with data; 5V power output port, and software controllable, easy to expand functions; Support USB flash firmware, firmware upgrade is more convenient; XY limit switch interface each Self-contained laser anti-burn mode, laser S value 100, after the laser is turned on, if there is no movement within 5S, an alarm will occur Material: plastic + metal Color as shown Package Contents: 1 x Control Board 1 x Type-C Cable 1 x 1.8 Inch Offline 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.