Lenovo ThinkPad T440, T440S, T440P, T450 Series Laptop 2.5 Hard Drive/SSD Drive | eBay
Amazon.com: Lenovo Thinkpad T440 Ultrabook 14in HD LED-backlit High Performance Business Notebook, Intel Core i5-4300U up to 2.9GHz, 8GB RAM, 128GB SSD, USB 3.0, Windows 10 Professional (Renewed) : Electronics
TUTORIAL: Lenovo T440P M.2 SATA SSD Upgrade - YouTube
Lenovo Thinkpad T440s Hard Drive Replacement - iFixit Repair Guide
ThinkPad T440p SSD Upgrade with Transcend MTS400 256GB 2242 M.2 SSD – Mostly About Computers
ThinkPad T440p SSD Upgrade with Transcend MTS400 256GB 2242 M.2 SSD – Mostly About Computers