What cable does 8K actually require?

8K60 needs 48 Gbps — the Ultra High Speed tier. Over long runs copper stops working and AOC takes over.

Answer: 8K60 at 4:2:0/4:4:4 needs a 48 Gbps link, which means an Ultra High Speed certified cable.

4K120 sits in the same 48 Gbps tier — one cable covers both.
Long copper runs lose the eye margin at 48 Gbps; beyond the practical limit the answer is an active optical cable.
Test at the target resolution and refresh, not at 4K60 — a cable can pass 4K60 and fail 8K60.

Frequently asked questions

What cable does 8K need?

A 48 Gbps Ultra High Speed cable for 8K60; long runs need an active optical cable (AOC).

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.

What cable does 8K actually require?

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Frequently asked questions

What cable does 8K need?

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