The VGA connector is a type of interface commonly mounted on a motherboard’s video card, serving as a link between a computer and a display monitor. A traditional VGA cable consists of a VGA interface and a main signal cable. The VGA interface has been one of the most widely used types of video connectors on graphics cards, and most graphics cards come equipped with it. The signal cable connected to the VGA interface typically uses a twisted pair structure to enhance transmission quality.
The VGA connector features a female port with 15 holes arranged in three rows of five, forming a “D” shape. This D-shaped design prevents incorrect insertion by ensuring that the connector can only be plugged in one way. The VGA female port on the graphics card is the output interface, which connects to the male D-sub connector of the display monitor, transmitting analog video signals.
Among the 15 pins of a VGA male connector, each serves a distinct purpose. Here’s how they are generally categorized:
- 3 RGB signal pins: These pins transmit the Red, Green, and Blue color component signals, essential for rendering full-color images.
- 2 synchronization signal pins: Known as HSYNC (Horizontal Sync) and VSYNC (Vertical Sync), these are used to synchronize the scanning of the display.
- 5 Ground (GND) pins: These ensure electrical grounding for stable signal transmission and reduce interference.
- 3 data channel pins: These handle Display Data Channel (DDC) communication for exchanging information between the display and graphics card.
- 2 NC (Not Connected) pins: These pins are not used and serve no electrical function.
Although the VGA connector was once the standard for computer video connections, it has gradually been replaced by newer technologies such as HDMI and DisplayPort, which offer better performance, digital signal transmission, and support for higher resolutions.
👉 If you need precision-machined VGA connector pins or custom metal contacts, feel free to contact us — we specialize in high-accuracy components for video and communication hardware.
