Adopt 32-bit main frequency up to 180MHz ARM grade STM32F446.Changed the 12v RGB port layout to 3 fan ports for easy output.The fan control circuit is optimized, and the buffer chip is upgraded to an triode control, which enhances the stability and greatly improves the safety performance.All motor driver module interface communication networks add high voltage buffering and voltage clamping processing, adding a shield to the MCU.Re-layout the PCB to improve the wiring experience.Type: Printer MotherboardOperating System: For , SpiderColour:blackMaterial:PCBPackage Contents:1 x Motherboard1 x Display Screen1 x Connecting Cable1 x Data Cable1 x Terminal15 x Jumper CapOnly 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.