Question about Dual Port Thunderbolt 3 - 657703

Hello Ajakfar88.
I can't say whether this card will run in an HP, but it won't work in a DELL.

Greetings STRO

Good morning,
I installed it on HP Z4 G4 WS and it works.
On Z840 I don't know but it probably works since it also has the PCIe bus.

Best regards
Roberto