If you’re planning an SSD upgrade for an HP ProBook 450 G2 and want to use an M.2 drive (often referred to as “M2”), here’s a concise, practical guide covering what works, what doesn’t, and how to install.
You can find a working M.2 SSD, but it will be: hp probook 450 g2 m2 ssd compatibility
For most users, this route is not worth the effort. HP ProBook 450 G2 — M
| Feature | M.2 2242 SSD (WWAN slot) | 2.5-inch SATA SSD | |---------|--------------------------|--------------------| | Compatibility | Poor (rare drives only) | Excellent (all brands) | | Max Capacity | 128GB (practically) | 2TB+ | | Max Speed | ~350 MB/s | ~550 MB/s | | Boot Support | Unreliable | Native guaranteed | | Price per GB | $0.80–$1.50 | $0.05–$0.10 | | Recommendation | ❌ Avoid | ✅ Strongly recommended | Small (max 128GB) Slow (limited to PCIe 2
Modern M.2 SSDs (both SATA and NVMe) expect:
The ProBook 450 G2’s BIOS does not natively recognize storage devices plugged into the WWAN slot. It expects a communications device. Consequently, if you insert a standard M.2 2242 SSD (e.g., a Transcend MTS400 or WD SN520), the laptop will not see it in the BIOS or Windows Disk Management.
However—and this is where hope emerges—some users have successfully booted from this slot using very specific, rare SSDs that identify as SATA devices over a B-keyed connector.