HP 512GB PCIe-4x4 NVMe M.2 Solid State Drive Compatible with HP ZBook Firefly 14 G9 Mobile Workstation; HP ZBook Firefly 16 G9 Mobile Workstation; HP Zhan99 G4 Mobile Workstation; HP ZBook Studio 16 G9 Mobile Workstation; HP ZBook Power 15 G9 Mobile Workstation; HP ZBook Fury 15.6 G9 Mobile Workstation; HP ZBook Fury 16 G9 Mobile Workstation; HP Elite Dragonfly Folio 13.5 inch G3 2-in-1 Notebook PC; HP Elite Dragonfly 13.5 inch G3 Notebook PC; HP EliteBook 1040 14 inch G9 Notebook PC; HP Elite x360 1040 14 inch G9 2-in-1 Notebook PC; HP Elite x360 830 13.3 inch G9 2-in-1 Notebook PC; HP EliteBook 830 G9 Notebook PC ; HP EliteBook 840 G9 Notebook PC; HP EliteBook 860 G9 Notebook PC; HP EliteBook 835 G9 Notebook PC; HP EliteBook 845 G9 Notebook PC; HP EliteBook 865 G9 Notebook PC; HP Elitebook 640 G9 Notebook PC; HP Elitebook 650 G9 Notebook PC; HP Elitebook 645 G9 Notebook PC; HP Elitebook 655 G9 Notebook PC; HP Pro x360 435 G9 Notebook PC; HP ProBook 440 G9 Notebook PC; HP ProBook 450 G9 Notebook PC; HP ProBook 445 G9 Notebook PC; HP ProBook 455 G9 Notebook PC; HP Zhan 66 Pro 14 G5 Notebook PC; HP Zhan 66 Pro A 14 G5 Notebook PC. Do not support 2nd M.2 storage of 400/600 G9.