The VGA connector is a connector installed on the video card of the motherboard to connect the host and the display. The traditional VGA cable is composed of a VGA interface and a main line. The VGA interface is a very widely used interface type on graphics cards, and most graphics cards have this type of interface. The main line connected to the VGA interface mostly uses a twisted wire structure.
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In the VGA connector, its female socket is a socket with 15 jacks, and the appearance is like a capital "D" to effectively prevent reverse insertion. The jacks of the VGA socket are arranged in 3 rows, with 5 holes in each row, which are the output interface of the display card, which is connected to the D-shaped plug of the display for the output of analog signals. Among the 15 pins of the male header, in addition to 2 NC (NotConnect) signals, 3 display data buses and 5 GND signals, the more important ones are 3 RGB color component signals and 2 scan synchronization signals HSYNC and VSYNC pins.
Although the VGA connector used to be the standard configuration of computer video connectors, with the development of the times, other specifications of connectors have gradually surpassed in performance, such as HDMI connectors.
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