A VGA (Video Graphics Array) computer cable or VGA Cable for Desktop is used to connect a VGA Cable for Monitors to a display device such as a monitor, projector, or TV. It carries analog video signals, allowing the display of graphics, text, and images on the screen is Durable VGA Video Cable.
Here are some key features and details about a VGA cable:
1. VGA Cable for Monitors Connector Type
- 15-Pin D-Sub Connector: The VGA cable typically has a 15-pin connector on both ends, with three rows of five pins. This is the standard VGA connector, known as a D-Sub connector.
2. Signal Type
- Analog Signal: VGA cables transmit analog signals for video output. This is in contrast to digital video signals like HDMI or DisplayPort. The video signal transmitted includes red, green, blue, horizontal sync, and vertical sync.
3. Common Uses
- Computer Monitors: Often used to connect desktop computers to monitors.
- Projectors: Used for connecting a laptop or desktop to a projector.
- Older TVs: Some older televisions support VGA input for connecting computers.
4. VGA Cable for Desktop Resolution and Quality
- VGA can support a variety of resolutions, ranging from 640×480 (standard VGA) up to 1920×1080 or higher, depending on the quality of the cable and the devices being connected.
- The quality of the signal degrades as the cable length increases, especially at higher resolutions.
5. Limitations
- Analog Signal: Being an analog format, VGA does not support digital features like HDCP (copy protection), and the quality is susceptible to interference, signal degradation, or distortion, especially over longer cable lengths.
- Audio: VGA cables do not carry audio signals. Separate audio cables are required when transmitting audio and video simultaneously.
6. Physical Design
- Cable Length: VGA cables typically come in various lengths (1-10 feet or more). Longer cables may need signal boosters to maintain video quality.
- Ferrite Core: Some VGA cables have ferrite cores at the ends of the connectors to help reduce electromagnetic interference (EMI) for clearer video signals.
7. Alternatives
- With the advent of digital connections, HDMI, DisplayPort, and DVI have become more common, offering better quality and digital signals. However, VGA is still found in some older devices or legacy systems.
In summary, VGA cables are an older but still functional way to transmit video signals from a computer to a display. While newer digital video cables offer better quality and features, VGA remains in use for some applications, particularly with legacy systems. For Durable VGA Video Cable call us!
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