VGA Cable
Electronic Equipment
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Product Orgin >> Rwanda || Shipping Duration 40min In Kigali And 2hours In Province
A VGA (Video Graphics Array) cable is a type of cable used to transmit video signals from a device, like a computer or laptop, to a display, such as a monitor or projector. VGA cables have been widely used for decades, primarily to connect computers to CRT monitors, LCD screens, and projectors, although they are now less common in favor of newer digital display technologies like HDMI and DisplayPort.
Key Features of a VGA Cable:
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Connector Type:
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The VGA connector is typically a 15-pin, D-sub (D-shaped) connector that is often blue to distinguish it from other cables.
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The 15 pins are arranged in three rows of five, and each pin is responsible for transmitting a specific signal (red, green, blue for the video colors, and additional pins for horizontal and vertical sync, as well as ground).
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Analog Signal Transmission:
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VGA transmits analog signals, meaning that the video data is sent as continuous waves, which can result in lower picture quality compared to digital connections.
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This analog nature can cause signal degradation over long distances, especially beyond 15 feet (4.5 meters), leading to a loss in image clarity and sharpness.
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Resolution Support:
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VGA supports a wide range of resolutions, including 640x480 (VGA) and higher, up to 1920x1080 (1080p) or more, but the quality can be reduced at higher resolutions, especially on larger screens.
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The signal quality largely depends on the length of the cable and the quality of the connectors.
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Audio:
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VGA cables do not transmit audio signals. If audio is needed, a separate cable (such as a 3.5mm headphone jack) is typically used in conjunction with the VGA connection.
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Common Uses:
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VGA cables are most commonly found on older devices, such as CRT monitors, projectors, early flat-screen monitors, and some laptops.
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Some professional environments or specific use cases, like certain conference rooms or legacy equipment, still use VGA cables for compatibility reasons.
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Limitations:
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Image Quality: VGA's analog signal can lead to image degradation, particularly on modern digital screens, and it lacks the sharpness and clarity provided by digital connections.
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Cable Length: VGA cables lose signal quality over longer distances, and may not perform well beyond 15-20 feet without the help of signal boosters or active adapters.
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