The dock is compatible with the following machines
HP ProBook 650 G2 Notebook PC; HP ProBook 650 G3 Notebook PC; HP Elitebook 820 G1 Notebook PC; HP Elitebook 840 G1 Notebook PC; HP Elitebook 850 G1 Notebook PC; HP EliteBook Folio 9470m Notebook PC; HP EliteBook Folio 1040 G1 Notebook PC; HP EliteBook Revolve 810 G1 Tablet; HP EliteBook Revolve 810 G2 Tablet; HP ZBook 14 Mobile Workstation
If you wish to have a true mate please use USB-C Gen 5 dock. I'm using USB-C Gen 5 dock with may HP Elitebook 840 G5 right now. I also tested this dock with few other HP machines and including a Dell machine.
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