How to determine if a third party USB-C to HDMI cable is really Thunderbolt compatible?

I bought a third party Benfei USB-C to HDMI 15' cable from Amazon. It was advertised as Thunderbolt 3/4/5 compatible, but when I received the item, there was no mention of Thunderbolt compatibility on the packaging and no Thunderbolt logo on the cable.

Is there a way I can test the cable to determine if it's really Thunderbolt compatible?

I have a Mac mini M2 with Thunderbolt ports.

Thanks for any advice.


Mac mini, macOS 26.5

Posted on Jul 26, 2026 1:23 PM

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How to determine if a third party USB-C to HDMI cable is really Thunderbolt compatible?

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