A: No. The motherboard standoff is fixed at 42mm length (2242). A longer drive will not physically fit.
If you run into problems, here are solutions to the most frequent issues: hp probook 450 g2 m2 ssd compatibility
If you prefer to keep your existing files, use cloning software like Macrium Reflect or Acronis Cyber Protect Home Office. Clone your existing 2.5-inch drive directly onto the new M.2 drive using a temporary external USB enclosure or by keeping both connected internally during the process. 6. Troubleshooting Common Issues If you run into problems, here are solutions
Turn the laptop upside down. Loosen the captive Phillips-head screws securing the large service door on the bottom of the chassis. Slide the door downward and lift it off to expose the internal components. Step 2: Locate the M.2 Slot Troubleshooting Common Issues Turn the laptop upside down
Official documentation mentions support for up to 120GB, but users have successfully used 240GB or larger SATA 2242 drives. HP Support Community Storage Expansion Options In addition to the M.2 slot, the HP ProBook 450 G2 offers other storage upgrade paths: HP ProBook 450 G2 SSD Upgrade - HP Support Community
support NVMe or PCIe M.2 SSDs. If you install an NVMe drive, the BIOS might detect it, but Windows will not be able to use it as a storage device. Form Factor
The HP ProBook 450 G2 supports M2 SSDs, but there are some limitations to consider: