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I never knew that USB-C extensions are not allowed for a reason (www.youtube.com)

submitted 1 week ago by [email protected] to c/technology

135 comments fedilink hide all child comments

There is a reason for USB-C extensions not to be part of the standard. They can be bothersome in the best case and dangerous in the worst.

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[–] [email protected] 18 points 1 week ago (2 children)

I have this cable: https://www.spigen.com/products/arcwire-usb-c-to-usb-c-cable-pb2202

It's 2 meters long, 240 watts and supports Thunderbolt 4/USB 4 (40 gbps).

I couldn't test the 240 watts charging as I don't have any device pulling more than 100 watts, but the Thunderbolt 4 part definitely works.

Apple sells a 3 meter Thunderbolt 4 cable (albeit limited to 100 watts of power) that isn't optical either (I think there's some special circuitry in the plugs though).

[–] MargotRobbie 29 points 1 week ago (1 children)

You're right. Those are active cables which I forgot to mention earlier that have special circuits that amplify signals, but are also a lot more expensive as a result.

[–] flames5123 14 points 1 week ago (2 children)

$90 for a cable and it’s not even braided is wild to me.

[–] stoicmaverick 6 points 1 week ago

I prefer not braided. Both for cables and hair. More of a ponytail kinda guy myself.

[–] [email protected] 3 points 1 week ago (2 children)

Braiding doesn't really increase the cable quality per se though..?

It's $90 because it has fairly thick wiring and as Margot said is likely an active cable (with a chip in the plug). It's actually fairly cheap considering the feature set.

[–] [email protected] 1 points 1 week ago

A shielded braid reduce the noise on the data lines and gives a better signal integrity. So it doesn't increase the quality of the material, but increase the signal to noise ratio (SNR), which is very important for data transmission.

[–] flames5123 1 points 1 week ago

Braided cables are just higher quality imo because they can’t tangle easily and take a lot of effort to bend.