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I stopped trusting USB-C cable labels and started testing them

44 pointsby baranullast Monday at 7:12 AM26 commentsview on HN

Comments

kiwijamoyesterday at 11:30 PM

Interestingly, I have found a very mixed bag of USB-C cables I've collected over the years to generally just work for all my use cases. I can charge my various USB-C laptops at 65W with all the USB-C cables I have on hand. Maybe it's just my habit of just buying cables from known brands (Belkin is normally my go to) but I also have random cables that came with various devices of varying quality and all these also work just fine. I have a 6-port charging hub so I can see the charging wattage and I can easily get 65W to various laptops and a high capacity power bank, regardless of the cable being used. All cables also work fine for data transfer, although I confess I use USB-C for data transfer rarely so it is possible there is some variability there. YMMV but I wonder how much of this issue is just crappy low-end cables?

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xbmcuserlast Monday at 8:47 AM

LTT has created true spec cables with the actual spec mentioned on the cables but they can not keep up with demand despite being expensive get sold out as soon as new stock comes in.

https://www.youtube.com/watch?v=Hfovjw7Ts_U&t=974s

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ChrisMarshallNYyesterday at 11:17 PM

As always, these testers (the affordable ones) are capable of testing continuity, and, I guess, the cable chip report.

If you want to test bandwidth, that's a five- or six-figure bit of gear.

safeimpyesterday at 10:44 PM

Verge recently posted this (free) app for testing on Mac's: https://www.theverge.com/gadgets/963759/whatcable-usb-c-cabl...

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pmarreckyesterday at 11:45 PM

The whole space is so scammy that I'd pay for a good USB-C cable tester

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Melatonicyesterday at 11:12 PM

If you want a super fast cable and high power thats where they get pricey. "Charge only" cables can often be fairly cheap and perform well even for laptops and high draw devices.

poguelast Monday at 10:40 AM

Is there a cheap, reliable tester that someone can recommend that will test multiple USB cable types (A, micro & C)?

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Melatonicyesterday at 11:10 PM

Isnt this what "USB-IF certified" is supposed to guarantee?

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Dylan16807yesterday at 10:31 PM

Just measuring the power info is limited use. I'm sure there's value for some people, but I only need to keep track of 0-2 high power cables.

> Your no-brand 480Mbps USB 2.0 cable is indistinguishable from the super-fast USB 4 cable that can move 40 gigabits (around 5 gigabytes) of data every single second.

One of those is way thicker than the other, at least.

I would love for something to force a speed and power rating on USB-C plugs.

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ahs1yesterday at 10:53 PM

hmm, how about just being able to infer the features of a cable by it's physical form factor? oh wait...