Modern M.2 SSDs (both SATA and NVMe) expect:
Before we dive into the technical details, here is the quick answer for those in a hurry: hp probook 450 g2 m2 ssd compatibility
This is where most users go wrong. The M.2 slot on the ProBook 450 G2 is . It uses the older SATA III protocol (6Gbps) over the M.2 physical connector. Modern M
If you want, I can provide step-by-step photos or a parts list (screws, adapter model numbers) for the swap. adapter model numbers) for the swap.