Certified USB cables have markings indicating what type of cable it is. Power can be 60W or 240W. Speed can be 20Gbps or 40Gbps. Here's how the logos look like

Certified USB cables have markings indicating what type of cable it is. Power can be 60W or 240W. Speed can be 20Gbps or 40Gbps. Here's how the logos look like https://audioxpress.com/news/new-certified-usb-logo-program-for-usb4-usb-type-c-and-usb-power-delivery-specifications https://audioxpress.com/news/new-certified-usb-logo-program-... If you buy a certified USB4 cable, it has the markings and should work as you expect it to work. If you buy a cheap Chinese cable, it won't have any markings or it has wrong markings. It won't be possible to mandate that every cheap Chinese cable has correct markings. It would require Amazon or Walmart to do some kind of quality checking for all their sellers, which won't happen. They allow SSD scams, so they also allow USB scams. https://news.ycombinator.com/item?id=32628381 https://news.ycombinator.com/item?id=32628381