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M.2 2242 SSD for 840 G1 - HP Support Community - 6835589
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Solved: What is the m.2 interface protocol that hp elitebook 840 g1 ... - HP Support Community - 7056032
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Amazon.com: 256 GB HDD NGFF M2 2242 SATA SSD de estado sólido para HP Elitebook 840 G1 850 G1 820 G1 Sony VAIO PRO 13 Duo 13 : Electrónica
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Upgrading SSD in HP 840 G1 EliteBook, 840 G2 or 840 G3 Laptop, Solid State Hard Drive - YouTube