Confused - Elitebook 840 G1 and the SSD m.2 slot 42mm - SAT... - Page 4 - HP Support Community - 5085271
elitebook 840 g2 m.2 ssd size and compatible cards - HP Support Community - 5117937
How to install an m.2 ssd: installation tutorial with HP Elite Book 840 G2 m2 ssd drive - YouTube
Can we put both an HDD and an SSD in an EliteBook 840 G3? - Quora
22*42mm M.2 Ssd 128gb Full 118gb Sata Iii 6gb/s Internal Hard Drive M2 Ssd Ngff For Chromebook Acer C720 For Hp Ellitbook 840 G1 - Internal Solid State Drives - AliExpress
m.2 SSD upgrade for my HP Elitebook 840 G2 : r/computers