ThinkPad T440p SSD Upgrade with Transcend MTS400 256GB 2242 M.2 SSD – Mostly About Computers
Lenovo ThinkPad T440, T440S, T440P, T450 Series Laptop 2.5 Hard Drive/SSD Drive | eBay
Lenovo T440 Hard Drive SSD and RAM removal and upgrade procedures - YouTube
Lenovo ThinkPad T440 14inch Business Laptop Computer, Intel Core i5-4300U Up to 2.9GHz, 8GB RAM, 256GB SSD, Bluetooth, USB 3.0, Windows 10 Professional (Renewed) : Electronics
Lenovo ThinkPad T440 m.2 SSD and 2.5" SSD Install (how to + test run) - YouTube
How to upgrade the SSD in your Lenovo ThinkPad T490 | Windows Central