The slot on the 450 G2 is a "B-Key" slot (notch on the right side). Modern NVMe drives are usually "M-Key" (notch on the left) or "B+M Key" (two notches).
| Question | Answer | | :--- | :--- | | Can I install an M.2 SSD in the HP ProBook 450 G2? | | | Why not? | The M.2 slot is for a WWAN card (cellular modem), not storage. The BIOS and hardware do not support M.2 SSDs. | | What should I do instead? | Replace the main 2.5" drive with a SATA SSD, and optionally add a second SSD in the optical drive bay. |
The ProBook 450 G2 sits on the precipice of a major technological transition in storage interfaces. For users looking to breathe new life into this machine via an M.2 SSD, the waters are murky. This guide demystifies the compatibility quirks, hardware limitations, and specific requirements needed to successfully upgrade the ProBook 450 G2.
: Use this for the operating system (Windows/Linux) and applications to significantly improve boot times and system responsiveness. hp probook 450 g2 m2 ssd compatibility
Before starting, shut down the laptop, unplug the power charger, and remove the battery.
This is the most common mistake upgraders make. The M.2 slot in the 450 G2 is electrically wired for , not PCIe/NVMe.
Highly reliable M.2 SATA III 2242 drives available in capacities ranging from 128GB to 512GB. They offer excellent endurance for older business laptops. The slot on the 450 G2 is a
The most reliable upgrade is replacing the primary HDD with a standard 2.5-inch SATA SSD like the Samsung 860 EVO.
This is the most critical factor. The M.2 slot on the HP ProBook 450 G2 . Compatible: M.2 SATA SSDs.
If you can confirm whether you currently have a 2.5-inch hard drive or an M.2 drive installed, I can give you more specific advice on which SSD to buy. Share public link | | | Why not
Hold the M.2 2242 SATA SSD at a 30-degree angle, align the notches, and gently push it into the slot until it seats completely.
Up to or more (Official HP docs often list 120GB, but users report higher capacities work fine) Important Limitations to Consider
Boot into Windows, right-click the Start menu, and select .
2242 . This means the drive must be 22mm wide and 42mm long. Common 2280 (80mm) drives are too long for this specific slot.
Use software like Macrium Reflect or Acronis Cyber Protect Home Office to clone your existing 2.5-inch C: drive partitions directly onto the new M.2 drive. Note that your utilized data on the old drive must be smaller than the total capacity of the new M.2 SSD for this to work. 6. Summary Checklist for Buyers Compatible Specification Slot Type Length/Size 2242 (22mm wide x 42mm long) Protocol/Interface SATA III (6 Gbps) Keying Max Tested Capacity 512GB - 1TB Incompatible Types NVMe, PCIe, 2260, 2280