The point isn’t really about audio bandwidth; it’s about the cable being strangely overbuilt for what it actually does.

It’s rigid and thick, like a Thunderbolt 3 cable, yet only supports USB 2.0 speeds and fast charging for a device that doesn’t need fast charging.

Compare that to Apple’s iPhone USB-C cable which is thin, flexible, and supports the same features.

That matters because someone might grab that cable assuming it’s a “better cable”: it came with a £629 product, it’s thick and feels serious, so surely it’s capable. But it isn’t. And there’s nothing marked on it to tell you otherwise.

The whole system ends up relying on presumption, which is exactly the problem the device in the article is solving.

No. CD audio is 1,4 mbit. Even increasing the temporal and spatial resolution beyond that, which is audiophile nonsense, will never even approach USB 2 speeds.