DisplayPort Alt Mode on USB-C uses the SuperSpeed lanes of the USB-C connector to carry DisplayPort 1.4 or 2.1 signals, enabling 4K/8K video output from USB-C ports without a full Thunderbolt implementation.
| Pin | Name | Function | Type |
|---|---|---|---|
| A2 | TX1+ | USB-C TX1 SuperSpeed positive DP lane | BUS |
| A3 | TX1- | USB-C TX1 SuperSpeed negative | BUS |
| A10 | RX2+ | USB-C RX2 SuperSpeed positive DP lane | BUS |
| A11 | RX2- | USB-C RX2 SuperSpeed negative | BUS |
| B2 | TX2+ | USB-C TX2 SuperSpeed positive DP lane | BUS |
| B3 | TX2- | USB-C TX2 SuperSpeed negative | BUS |
| B10 | RX1+ | USB-C RX1 SuperSpeed positive DP lane | BUS |
| B11 | RX1- | USB-C RX1 SuperSpeed negative | BUS |
DisplayPort Alt Mode on USB-C uses the SuperSpeed lanes of the USB-C connector to carry DisplayPort 1.4 or 2.1 signals, enabling 4K/8K video output from USB-C ports without a full Thunderbolt implementation.