Looks like m.2 2280 worked out just fine for t450s : r/thinkpad
Lenovo ThinkPad T440 m.2 SSD and 2.5" SSD Install (how to + test run) - YouTube
Amazon.com: eDrive 16GB M.2 NGFF SSD for Lenovo Thinkpad T440 T440p T440s T450 T540 Compatible 00JT035 04X4456 04X4457 04X4483 04Y2169 04Y2185 04Y2197 45N8465 45N8467 CG4-24 L6G-16 L6G-24 U110-16 U110-24 : Electronics
Thinkpad T450s m.2 slot - Hardware - Level1Techs Forums
Amazon.com: Lenovo ThinkPad T450s 14in Laptop, Intel Core i5 5300U 2.3Ghz, 8GB DDR3 RAM, 256GB SSD Hard Drive, Webcam, Windows 10 (Renewed) : Electronics
Lenovo M.2 SSD Connector Board T440 T440S T450 T450S NS-A056 VILT0 M2 Adapter | eBay
Two WWAN slots in T450?? : r/thinkpad
Thinkpad T450s m.2 slot - Hardware - Level1Techs Forums
Lenovo ThinkPad T450s Laptop Review > Graphics, Storage, Battery and Conclusion | TechSpot
Lenovo ThinkPad T450s Hidden 16GB m.2 SATA SSD Removal 2nd Internal Battery Replacement Repair - YouTube
Lenovo Thinkpad T450 Hard Drive/SSD Replacement - YouTube
Lenovo Thinkpad T450s Laptop SSD/HD Replacement - YouTube
Lenovo M.2 SSD Connector Board T440 T440S T450 T450S NS-A056 VILT0 M2 Adapter | eBay
Upgrade Lenovo ThinkPad T450s with M.2 SSD | Ram | HDD - YouTube
thinkpad-t450-ssd-M2-2242 - English Community - LENOVO COMUNIDAD
Upgrading a ThinkPad T450s with an M.2 SSD - James Ridgway
Lenovo ThinkPad T450 Ultrabook Review - NotebookCheck.net Reviews
TEARDOWN UPGRADE - THINKPAD T450 UPGRADE SSD Msata / M.2 Sata 2242 - YouTube
laptop - Thinkpad T450s WWAN M.2 slot - M or B key? - Super User
How to Install SSD and Ram Upgrade in Lenovo ThinkPad T450 Laptop - YouTube
Lenovo M.2 SSD Connector Board T440 T440S T450 T450S NS-A056 VILT0 M2 Adapter | eBay
Upgrading a ThinkPad T450s with an M.2 SSD - James Ridgway
Thinkpad T450S m.2 slot - Kernel & Hardware - EndeavourOS
Lenovo Thinkpad T450 i5-5300U 2.30GHz 16GB 1TB SSD 1600x900 Windows 10 Pro - PCSP
How to Clone HDD to SSD in Lenovo Laptop (Bootable)
