3 ms·

I haven't been able to find anything saying how many wires are in the cable, does anyone here know and have a reference? Is it the full 24 wires mapped end-to-

I haven't been able to find anything saying how many wires are in the cable, does anyone here know and have a reference? Is it the full 24 wires mapped end-to-end or are some of the connectors mapped to a single wire? Like, the 4 USB 2.0 connectors, I imagine it makes little sense to have 4 physical wires there, right? Yet they obviously have the SuperSpeed lanes wired separately because they can run DP alt mode on one side of the connector and USB 3.1 on the other. I'd love to see something discussing this and it could affect the longer term viability of the physical connector spec. EDIT: Honestly, I'd love it if the spec said they must have 24 wires AND that balanced pairs would be twisted pairs. As long as the connector is durable I'm willing to pay more for a good cable designed to that spec.

deleted 12y ago
[deleted]
- lsaferite 12y ago
  From the official spec the max wires is 18 + shield. Also, from all my reading, USB 3.1 + DP Alt run at the same time. USB 3.1 only needs 2 of the 4 lanes. http://www.usb.org/developers/docs/ http://www.usb.org/developers/docs/
  - lsaferite 12y ago
    Reading the spec a little more, during Alt mode negotiation TX1n/TX1p, TX2n/TX2p, RX1n/RX1p, RX2n/RX2p, and SBU1/SBU2 are all available for reconfiguration. That's 4 balanced pairs + 2 wires. Additionally, if the connection is a direct-connect, like a docking station, then 3 additional pins become available: B5, B6, and B7. So, a dedicated docking station could have Power + USB 2.0 + 13 pins (4 balanced pairs + 5 extra) or Power + USB 2.0 + USB 3.1 + 9 pins (2 balanced pairs + 5 extra)