If all HDMI cables are basically the same design, pinout, etc. how have they been able to double, quadruple, etc. the bandwidth on them over time?

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Going from HDMI 1.4 to 2.1 there is a 5x increase is bandwidth. Is it because the cables themselves were never the issue but it was the connectors/chips in the devices themselves that couldn’t handle it?

I know part of it is the actual quality of the cables themselves and tighter tolerances, more twists in the wires, material purity, etc. but I can’t imagine that alone would be enough to fully account for this.

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Anonymous 0 Comments

They are not the same, there’s variation on the thickness of the cable, shielding and materials so we have various standards that define the maximum bandwidth a given cable supports so while a 2.1 cable has the same amount of wires as a 1.4 they are constructed differently and the 2.1 has better quality. All of this assuming said cables actually comply with the standard.

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