Answer: Computer, DVI graphics card, data transmission card, synchronous data receiving card, HUB board, network cable, LED display, etc.
Answer analysis: The synchronous screen system is relatively complex. The system can be large or small. It is generally composed of a computer, DVI graphics card, data transmission card, synchronous data receiving card, HUB board, network cable, LED display, etc. The system always needs to work online with a computer to display the images and text on the computer on the large LED screen.