Support virtual USB device function Use a USB cable to connect the PC and the motherboard, and the PC can read and write files to the TF card and USB disk on the motherboard just like reading and writing USB disk. From now on, you don't need to repeatedly plug and unplug the TF card and USB disk to copy gcode files Supports various types of LCD screens MKS TS35/MKS H43/LCD12864/LCD2004... Support dual Z- Parallel to the Z- motor interface, it is also possible when using dual extruders Supports 2 PWM controllable fans Conveniently control the fan switching Hign-concerned Chemical:None Application:3D Printer (The product printed words depending on the batch, but this does not affect use) Color: As Shown Material: PCB+LCD Package Contents: 1 * Touch Display 1 * Motherboard 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.