this post was submitted on 22 Jul 2024
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cross-posted from: https://lemmy.world/post/17754693

I learn more about cables in this channel every week. Just wanted to share

top 11 comments
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[–] Imgonnatrythis@sh.itjust.works 39 points 1 month ago (1 children)

Yall just ruining the U in USB.

[–] tia@lemmy.world 3 points 1 month ago

Yeah, it's not really getting easier...

[–] altima_neo@lemmy.zip 20 points 1 month ago (3 children)

I ended up just buying a tester

[–] jqubed@lemmy.world 18 points 1 month ago (1 children)
[–] altima_neo@lemmy.zip 5 points 1 month ago

This is the one I bought

Treedix USB Cable Data Line Test Board https://a.co/d/15h4lEh

It's a bit of a pain to learn what means what, but once you read up on it, it's pretty straightforward.

[–] brickfrog@lemmy.dbzer0.com 5 points 1 month ago

Interesting, any you recommend or are currently using?

[–] JustZ@lemmy.world 3 points 1 month ago* (last edited 1 month ago)

Same. Mine is made by Treedix.

$17 on Amazon.

It is great at determining the technical limits of a cable. To read the test you have to practice a lot or reference a chart that was confusing to me.

It does not tell you whether the cable functions, only what its technical capabilities could be if it was working as intended. In other words, as I understand, it checks what pins are there on each side of the cable, not whether they are connected anywhere in the middle.

It's good for sorting through all the crap cables that accumulate and figuring out which ones can't do shit and which ones can stream high def video and power a small computer.

Some basic cables only have power, no data at all.

That's what's universal about USB, the ports and connectors, not the cables.

[–] Toes@ani.social 8 points 1 month ago (1 children)

It gets worse, not all usbc ports are fully featured either.

[–] tia@lemmy.world 1 points 1 month ago

That's true, they explain this in a different video: https://www.youtube.com/watch?v=y9vXDy_zt4I

[–] ag10n@lemmy.world 7 points 1 month ago
[–] solrize@lemmy.world 5 points 1 month ago

The video is in English and it's about how some cables support USB PD power negotiation better than others, it seems. I only watched a few moments.