CMS 64GB (2X32GB) Memory Ram Compatible with Dell Precision Mobile Workstation 7540, Precision Mobile Workstation 7740 - D48 System Specific Memory - Newegg.com
A-Tech 16GB Kit (2x8GB) RAM for Dell Latitude E7440, E7240, E6540, E6440, E5540, E5440 Laptop | DDR3/DDR3L 1600 MHz SODIMM PC3L-12800 Memory Upgrade at Amazon.com
8GB Memory Upgrade Compatible with Dell Inspiron 14 3000 (3490) DDR4 2666MHz SODIMM RAM (PARTS-QUICK Brand) at Amazon.com