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.
Upgrading the ProBook 450 G2 is relatively straightforward thanks to HP's service-friendly design, which features a removable bottom access panel. Tools Needed: A small Phillips-head screwdriver (PH0 or PH1). An anti-static wrist strap or a grounded surface. A compatible M.2 2242 SATA SSD.
One major advantage of the ProBook 450 G2 is that the M.2 slot and the 2.5-inch bay are . You do not have to choose one or the other. You can run both simultaneously. hp probook 450 g2 m2 ssd compatibility
Do you plan to or do a clean Windows installation ?
The M.2 slot is not wired for PCIe/NVMe, as mentioned in HP Community forums. If you install an NVMe drive, the BIOS will not recognize it. Where is the M.2 Slot? This is where most users go wrong
Insert a bootable Windows installation USB drive, reboot, tap F9 to enter the boot menu, and select your USB. Install Windows directly onto the newly recognized M.2 SSD.
If you don't need a secondary HDD, simply replace your old 2.5-inch HDD with a 2.5-inch SATA SSD (e.g., Crucial BX500, Samsung 870 EVO). This requires no driver hunting, no BIOS confusion, and is guaranteed to work. Upgrading the ProBook 450 G2 is relatively straightforward
The M.2 slot is found next to the wireless card under the main service panel.
Loosen the captive screws securing the main service door and slide the door off. Phase 2: Inserting the M.2 SSD
The 2242 number refers to the physical dimensions of the drive. The board in the ProBook 450 G2 is 22mm wide and 42mm long, which means the overall size of the SSD you install must be exactly this length and width. Longer M.2 drives, like 2260 or 2280, are not physically compatible.