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I ordered a 10m HDMI cable which was labelled "highspeed" and got a cable with the "standard" label. When asking the store, they told me, that HDMI cables, which are longer than 7.5m can't be highspeed anymore, starting early 2013.

Is it true, that a cable could lose its "highspeed" rating either because it is too long, or because the standard changed?

EDIT: The shop told me, that for all cables, which are longer than 10m, "highspeed" is the new standard and that they don't sell "standard" cables anymore. He insists on the fact, that the cable is a "highspeed" cable although he isn't allowed to print it on the box.

I returned the cable to get a cable from a more reliable shop...

I'm aware of the questions HDMI-HDMI cable length and Length limit for HDMI cables, but my point is a bit different.

I'm also aware of the FAQ on hdmi.org, which explicitly states, that the standard doesn't specify any length. Unfortunately, this FAQ seems a bit outdated/badly maintained.

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  • Have you tested the cable and notice any defects, or any odd results?
    – Darius
    Apr 23, 2014 at 7:35
  • I don't want to open the box, to be able to return it without a problem.
    – Stefan
    Apr 23, 2014 at 8:28
  • Did you contact the cable manufacturer? They may be able to explain their product and the standards it will meet.
    – CharlieRB
    Apr 23, 2014 at 11:32
  • Unfortunately, the shop and manufacturer seem to be the same...
    – Stefan
    Apr 23, 2014 at 13:06
  • This may have more to do with the shop's own practices than an actual standard. The "high speed" or "standard" is based on the quality of the cable, not just the length. en.wikipedia.org/wiki/HDMI#Cables
    – Nattgew
    Apr 25, 2014 at 20:32

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