4 ms·

Hang on, I thought there were only two main axis for a USB-C to USB-C cable: maximum protocol (3.1 Gen 2, 3.1 Gen 1, 2.0) and maximum current (3A, 5A). Also, wo

by cesarb 9y ago

Hang on, I thought there were only two main axis for a USB-C to USB-C cable: maximum protocol (3.1 Gen 2, 3.1 Gen 1, 2.0) and maximum current (3A, 5A). Also, wouldn't most USB-C cables be passive, and the choice of alternate mode be left to the endpoints? I don't think a passive cable cares whether the wires are being used to carry DisplayPort, HDMI, or something else.

kuschku 9y ago
The maximum current isn’t at 5A anymore, as many USB-C cables now support 100W USB power delivery
- cesarb 9y ago
  Isn't 100W USB power delivery 5A at 20V?
  - kuschku 9y ago
    Good point, yeah. For some reason I had assumed they’d stick with the same 5V as always, but you’re right, they use 20V for PD.