Hacker Newsnew | past | comments | ask | show | jobs | submitlogin

> One of the things that I found most frustrating about USB-C hubs is how hard it is to find one that actually gives you multiple USB-C ports.

It's the power consumption.

IIRC, USB-C has a base power per port of 15W (5V @ 3A) with just basic CC resistors. USB 2 starts at 0.5W (5V @ 0.1A) and is only supposed to allow 2.5W (5V @ 0.5A) after negotiation. USB 3 is 4.5W (5V @ .900A).

Note that the Caldigit hub linked in a sibling has a power supply of 20V @ 9A. That's 180W!



Guidelines | FAQ | Lists | API | Security | Legal | Apply to YC | Contact

Search: