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VGA Coupler (Male to Male)

CPL-VGA-MM

Joins two VGA cables together, or changes the gender of a connector.

Type: Adapter
Connectors: VGA

In-depth technical details

VGA (DE-15) carries 3 analog color signals (R/G/B), separate HSync/VSync timing lines, and a real DDC (I2C) channel on pins 12/15 -- the same 'source reads the display's real capabilities' concept as HDMI's DDC, just an older technology.

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Connector anatomy

VGA (HD-15)

01 15 pins Three analogue colour signals (red, green, blue) plus horizontal and vertical sync, each on its own pin.
02 DDC (I²C) The EDID handshake -- how the source learns which resolutions the display supports.
03 D-shaped shell The D profile only fits one way round, so the plug cannot be inserted upside-down and bend its pins.
04 Thumbscrews Hand-tightened to hold the plug home. A loose one is why a picture flickers, or loses one colour channel.
05 Strain-relief boot Stops the wires flexing where they leave the plug — the exact point most cables fail.
06 Outer jacket The outer sheath protecting the conductors inside from abrasion and moisture.

Technical illustration, not a photo of the actual product

From the published standard

How it works

An inline coupler joins two cables of the same type to extend a run, or changes connector gender so two devices with the same plug type can meet. It is purely passive and neither boosts nor cleans the signal, so every extra coupler on a run adds a contact point that can degrade over time — a single cable of the right length is preferable whenever that is practical.

Function: Passive join or gender change — no signal boost
Trade-off: Each coupler adds a contact point that can degrade over time

This information comes from published sources about this type of product, not from the supplier.

en.wikipedia.org

Technical specifications

Type	Adapter
Connectors	VGA

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