VGA (Video Graphics Array) interface, also known as D-Sub interface.The information processed by the graphics card will eventually be output to the display, and the VGA line is the bridge between the output signal of the graphics card and the display.It is responsible for transmitting the corresponding image signal to the display. It has the advantages of high resolution, fast display rate, rich colors and so on. It has been widely used in the field of color display. VGA cables can support a variety of resolutions. No standard defines the quality required for each resolution, but higher quality cables usually contain coaxial wiring and insulation to make them thicker. Shorter VGA cables are less likely to introduce significant signal degradation, and quality cables should not be affected by signal crosstalk.