expiredphoinix | Staff posted Mar 25, 2026 09:59 AM
Item 1 of 3
Item 1 of 3
expiredphoinix | Staff posted Mar 25, 2026 09:59 AM
[Prime] $15.99* | 4.9' Cable Matters USB-IF Certified 80Gbps 240W USB 4 Thunderbolt Cable at Amazon
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Our community has rated this post as helpful. If you agree, why not thank violentleaf
Note that Thunderbolt 4 and 5 are just USB4 with special certification. USB4 cables can be more or less equivalent to Thunderbolt cables. The main difference between USB-IF cable certification and Thunderbolt cable certification is that Thunderbolt puts a lot more effort into ensuring that every cable that rolls off the manufacturer assembly line is compliant through testing many more cables and random sample audits.
The way I see it, there are 3 tiers of USB4/Thunderbolt cables on the market:
Since passive USB4 and Thunderbolt cables are just straight-through signal wires with an emarker and since they are tested to the same specification, passive certified USB4 and Thunderbolt cables are functionally identical. You can save money with a USB-IF certified cable, but only Thunderbolt has certified Active cables (cables with internal signal redrivers that can extend cable length due to offsetting signal loss).
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