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
Lenovo T440 Thinkpad Upgrades
For Lenovo ThinkPad T440 notebook motherboard VIVL0 NM-A102 CPU i5 4210 4300 4GB RAM 100
Thinkpad T440p Ultimate Buyer's Guide - OctoPerf
parts-quick 4GB Memory Upgrade for Lenovo ThinkPad T440 (Core i5) Compatible DDR3L 1600MHz PC3L-12800 SODIMM RAM at Amazon.com