This effectively only tells you what the E-Marker reports though, the actual capabilities of the cable are still unknown.

You can say the cable can do whatever you want on the E-Marker, its not the source of truth.

The problem is, to actually benchmark everything, voltage drop, resistance, actual bandwidth (especially at Thunderbolt 5 speeds) requires a lot of hardware.

Using a USB-C Test Controller ($13,000), connected to a Pro Keysight Infiniium oscilloscope ($258,809) is the proper way to test it. https://www.keysight.com/au/en/product/N7018A/type-c-test-co...

Yes and no..

Oscilloscope is needed for things like frequency response.

but most consumer care only the power loss and bandwidth only.

well, that's disappointing; someone needs to miniaturize that and reduce the cost massively

It’ll never happen. Measuring to the proper Thunderbolt spec is only possible on literally the most cutting edge measurement equipment. Physics just won’t permit that being a gadget you can buy for $20 of whatever.

Maybe today

Also, who tests the expensive testers? ;)

> Maybe today

By the time you could measure this, I suspect USB C will no longer be used.

> Also, who tests the expensive testers? ;)

Specialized metrology firms that cost more money than you can afford.

They are just catching up with ShowHN:

https://hackertimes.com/item?id=47972511

Useful app, funny thread (centipede), and the MacRumors Bartender alternative link arising from the menu bar decision discussion means I might be able to ditch Ice! (reduce spacing instead)

It's not actually free, it's $14 to unlock all the features.

Can't actually read the Verge without a subscription either.