HP Thunderbolt-2 PCIe 1-port I/O Card(F3F43AT) High-speed, dual-protocol I/O that delivers breakthrough-performance with 20 Gbps bi-directional, dual-channel transfer speeds. Low latency and enhanced time synchronization supports extremely accurate audio and video creation, playback, and editing. Support data and video with PCIe and DisplayPort on a single card with a single cable connection. Enjoy maximum productivity by daisy-chaining up to six devices. (Requires a DisplayPort input to enable downstream DisplayPort devices on the Thunderbolt daisy chain) Use with a range of devices that support the Thunderbolt and Thunderbolt 2 standards without requiring a cable adapter.3