USB-C DisplayPort 1.4 Alt Mode repurposes the four SuperSpeed lane pairs to carry four DP 1.4 main link lanes, enabling 8K/60Hz, HDR10, DSC, and MST (multiple monitors) directly from a USB-C port.
| Pin | Name | Function | Type |
|---|---|---|---|
| A2 | TX1+/ML0+ | DP Main Link lane 0 positive | BUS |
| A3 | TX1-/ML0- | DP Main Link lane 0 negative | BUS |
| A10 | RX2-/ML1- | DP Main Link lane 1 negative | BUS |
| A11 | RX2+/ML1+ | DP Main Link lane 1 positive | BUS |
| B2 | TX2+/ML2+ | DP Main Link lane 2 positive | BUS |
| B3 | TX2-/ML2- | DP Main Link lane 2 negative | BUS |
| B10 | RX1-/ML3- | DP Main Link lane 3 negative | BUS |
| B11 | RX1+/ML3+ | DP Main Link lane 3 positive | BUS |
| A8 | SBU1 | DP AUX positive | BUS |
| B8 | SBU2 | DP AUX negative | BUS |
| A4 | VBUS | Power | PWR |
| A5 | CC1 | Alt mode negotiation | BUS |
USB-C DisplayPort 1.4 Alt Mode repurposes the four SuperSpeed lane pairs to carry four DP 1.4 main link lanes, enabling 8K/60Hz, HDR10, DSC, and MST (multiple monitors) directly from a USB-C port.