Looks like m.2 2280 worked out just fine for t450s : r/thinkpad
Thinkpad T450S m.2 slot - Kernel & Hardware - EndeavourOS
TUTORIAL: Lenovo T440P M.2 SATA SSD Upgrade - YouTube
Thinkpad T450s m.2 slot - Hardware - Level1Techs Forums
Lenovo ThinkPad T450s Disassembly and RAM, HDD, SSD upgrade options - Laptopmain.com
Upgrading a ThinkPad T450s with an M.2 SSD - James Ridgway
Lenovo ThinkPad T450s Disassembly and RAM, HDD, SSD upgrade options - Laptopmain.com
Lenovo ThinkPad T450s Disassembly and RAM, HDD, SSD upgrade options - Laptopmain.com
Question about T450s and M.2 SSD : r/thinkpad
Lenovo ThinkPad T450s Disassembly and RAM, HDD, SSD upgrade options - Laptopmain.com
Two WWAN slots in T450?? : r/thinkpad
ThinkPad-T450s-SSD-migration-amp-OS-Installation-Clean-Clone-and-Recover - English Community - LENOVO COMMUNITY
Thinkpad T450s m.2 slot - Hardware - Level1Techs Forums
2 M.2 Slots (wlan And Wwan) - valleyabc
Review Lenovo ThinkPad T440 20B6005YGE Notebook - NotebookCheck.net Reviews
Upgrading a ThinkPad T450s with an M.2 SSD - James Ridgway
laptop - Thinkpad T450s WWAN M.2 slot - M or B key? - Super User
ضريبة أرسلت الطب الشرعي lenovo t440 m2 ssd - orythhanddryer.com
How to Install an M.2 SSD in the Lenovo ThinkPad T440s | Laptop Mag
laptop - Thinkpad T450s WWAN M.2 slot - M or B key? - Super User
Lenovo ThinkPad T450 Ultrabook Review - NotebookCheck.net Reviews
Lenovo T450s Ram Upgrade Hot Sale, 44% OFF | westcoastmodern.org
Lenovo Thinkpad T450s Laptop SSD/HD Replacement - YouTube
Lenovo ThinkPad T450s Disassembly and RAM, HDD, SSD upgrade options - Laptopmain.com
thinkpad-t450-ssd-M2-2242 - English Community - LENOVO COMMUNITY
M.2 Key-M(female) to key-B(male) adapter for Thinkpad t440p+ADT-Link R43SF(M .2 key-M) | Expresscard, mPCIe, M.2 eGPU
