Solved: Adding M.2 SSD to EliteBook 850 G2 (J8R65EA) - HP Support Community - 5920770
elitebook 840 g2 m.2 ssd size and compatible cards - HP Support Community - 5117937
Before buying SSD, I first asked customer care of my HP Elitebook 8440p base model, they declined SSD's support in it. As it came with HDD by delfault. Is she right? -
Amazon.com: HP EliteBook 840 G2 14in Laptop, Core i5-5300U 2.3GHz, 16GB Ram, 256GB SSD, Windows 10 Pro 64bit, Webcam (Renewed) : Electronics