HP Thunderbolt-2 Ie 1-port I/O Card manual

6.The back of the Thunderbolt add-in card includes two connectors: (1): Thunderbolt cable connector

(2): DisplayPort cable connector

Attach the DisplayPort cable and the Thunderbolt cable to the back of the add-in card.

NOTE: Plug the other end of the Thunderbolt cable into a Thunderbolt device. Plug the other end of the DisplayPort cable into a graphics card.

8 Thunderbolt 2 PCIe Card Installation