The article links to a emarker reader [1]. This seems like something that milions of households should/will own. Do you know where can I buy a cheap and reliable one?

[1] https://www.reddit.com/r/UsbCHardware/comments/z2hncm/recent...

I'll bite. Of course hwdesigner/serviceman use this, but what are the uses for millions of household ?

I have like 20 cables at home with USB-C on at least one end. Quite often I plug it is and it doesn't work. Is is the charger? Is it the end device? Is it the cable? Other times it charges but surprisingly slow. It happened to me that I bought 120 EUR 100W GAN charger and was actually charging at 60W or so because I used wrong cable. Those devices will take out one variable.