How to upgrade RAM memory in Lenovo ThinkPad T440p laptop - YouTube
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Lenovo Thinkpad T440 20B6008EUS (14" HD, i5-4200U 1.6GHz, 4GB RAM, 500GB 7200rpm Hard Drive, Windows 7 Pro 64) (20B6008EUS) Laptops / Notebooks - Newegg.com
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parts-quick 4GB Memory Upgrade for Lenovo ThinkPad T440 (Core i5) Compatible DDR3L 1600MHz PC3L-12800 SODIMM RAM at Amazon.com