CMS 16GB (2X8GB) DDR3 12800 1600MHz Non ECC SODIMM Memory Ram Upgrade Compatible with HP/Compaq® Elitebook Folio 9470M Ultrabook Energy Star - A7 at Amazon.com
1040 g1” ram upgrade - HP Support Community - 5251079
4GB Memory Upgrade for HP EliteBook 840 G1 DDR3L 1600MHz PC3L-12800 SODIMM RAM (PARTS-QUICK Brand) at Amazon.com