Question Thunderbolt 3 40gbps cables

Mar 22, 2021
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I'm building a new AMD Ryzen-based desktop, to support a home studio based around the Presonus Quantum 2626 Audio Interface. I've purchased most of my components; I'm just waiting for the new ASUS Pro-ART B550-Creator motherboard to be released, hopefully sometime in April. I've selected this particular motherboard for its Thunderbolt 3/4 support, as the Presonus Quantum 2626 audio interface connects to its host via a TB3 connection.

Now for my question. How does one find a 40gbps-rated Thunderbolt 3 cable? In my innocence and naivete, I purchased an IOGEAR Thunderbolt 3 cable from Newegg for about $35. On arrival at my home, I discover it's only rated at 20gbps. (No mention of transfer speed in its specs online, mea culpa...)

I've been looking at all the usual vendors have to offer, and am a trifle confused. Orico offers a 40gbps cable for $35, Tripp Lite has an apparently similar one for $98.

What am I missing? Why would I spend $98 if the $35 Orico cable works? How do I make an informed decision in this new (to non-Apple PC platform) technology?

Is anyone else farther along this learning curve than me?

It'd be much appreciated if you are...
 
Mar 22, 2021
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Dear boju,

Thank you! It's greatly appreciated... you very likely have saved me from a potentially onerous shopping/acquisition experience.

I hope I can return the favor someday.

-- dlm001
 

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