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forum threadKevinR6981 posted Mar 25, 2026 09:20 PM
forum threadKevinR6981 posted Mar 25, 2026 09:20 PM

80Gbps USB 4 Cable for Thunderbolt 5 Cable, [USB-IF Certified] 120Gbps USB C Data Cable, PD 240W Fast Charging, 16K/8K USB C Monitor Cable for Thunderbolt 4, 3.3FT $13.99

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80Gbps USB 4 Cable for Thunderbolt 5 Cable, [USB-IF Certified] 120Gbps USB C Data Cable, PD 240W Fast Charging, 16K/8K USB C Monitor Cable for Thunderbolt 4, MacBook,SSD,Dell,HP,Lenovo Laptop (3.3FT)

https://www.amazon.com/dp/B0F5HGCFCM
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80Gbps USB 4 Cable for Thunderbolt 5 Cable, [USB-IF Certified] 120Gbps USB C Data Cable, PD 240W Fast Charging, 16K/8K USB C Monitor Cable for Thunderbolt 4, MacBook,SSD,Dell,HP,Lenovo Laptop (3.3FT)

https://www.amazon.com/dp/B0F5HGCFCM

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Mar 26, 2026 03:34 PM
98 Posts
Joined Mar 2021
violentleaf
Pro
Mar 26, 2026 03:34 PM
98 Posts
As someone who keeps up with and tests USB-IF certified cables (as this one claims to be), I find this cable extremely sus. I am almost entirely positive that this cable is not certified.

First, the vendor name is basically alphabet soup and they are not a USB-IF member. The store is based in Guangdong, China.

Second, based on a user review that includes an emarker reader the USB Highest Speed field is set to [USB 3.2/USB4 Gen2] which is 20Gbps. This cable will not work at any speed higher than that because USB4/Thunderbolt must see USB4 Gen3 or higher in this field to enter modes 40Gbps or higher. No cable with this flaw would make it past USB-IF certification.

Third, this is the second sus cable I've come across that uses the same certification number as Silkland's S3403 cable.

Edit: If you're gonna thumbs down at least add to the discussion
Last edited by violentleaf March 31, 2026 at 12:06 PM.
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