Which conductor and shielding should an HDMI cable specify?

OFC is the baseline for a certified cable; specify foil plus braid shielding and the gauge (AWG).

Answer: oxygen-free copper (OFC) as conductor, foil plus braid as shielding, and the gauge (AWG) stated explicitly.

OFC is the baseline for a cable that has to pass certification.
Gauge determines usable distance at a given bandwidth.
Shielding is what separates a cable that works next to power cables and Wi-Fi from one that drops frames in a rack.

Frequently asked questions

What conductor and shielding should be specified for HDMI cable?

OFC conductor, foil plus braid shielding, and the gauge (AWG) stated explicitly.

About the author

Tonetron Engineering Team· Dongguan Taitron Electronic Limited

Tonetron is the export brand of Dongguan Taitron Electronic Limited, a cable and connectivity manufacturer in Dongguan, Guangdong, China. Our engineering and QA teams write these guides from our own production and test experience — including HDMI Forum ATC confirmations (certificates 5QSIMQP4DLG, 2JCHSF3SL1X, MG3CQ3Z4BAG) and USB-IF USB4 certification testing passed under TID 6801. Our USB-IF membership has since lapsed, so that entry is no longer in the public USB-IF product search; the certificate itself is published on our credentials page. The credential you can verify yourself right now: we have been a licensed HDMI™ Adopter since June 2005 — searchable under “Dongguan Taitron” in the official HDMI™ Adopter directory.

Which conductor and shielding should an HDMI cable specify?

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Frequently asked questions

What conductor and shielding should be specified for HDMI cable?

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