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zowardtoday at 10:34 AM3 repliesview on HN

It means that if I pick up a random USB cable and plug it into a USB port I have no idea how well it will work or even if it will work at all. It's like the U in USB stands for Unpredictable.


Replies

Gigachadtoday at 2:14 PM

Get a certified cable if it matters to you. If you pick a random cable out of the cable box it’s probably a 2.0 charging only cable that hasn’t been certified by USB IF.

Ultimately the majority of people only use usb cables for charging or 2.0 speeds for their keyboard or mic so this isn’t a problem. And for those who it is a problem, they know which one their high speed cable is.

massysetttoday at 11:55 AM

Now I only buy USB cables if they are marked with their speed and wattage. If it’s not marked, I have to assume it carries little power and is glacially slow, which is fine to charge some Bluetooth headphones but is not usable to connect an SSD.

https://www.usb.org/sites/default/files/usb_type-c_cable_log...

izacustoday at 11:04 AM

You'll notice a difference between USB 3.1 and 3.2 2x2?

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