Beware of the single rank x16 RAM kits sneaked in some laptop models! The 1Rx16 modules have significantly lower bandwidth compared to the 1Rx8 variants - NotebookCheck.net News
A-Tech 8GB RAM Replacement for Micron MTA8ATF1G64HZ-2G3B1 | DDR4 2400MHz PC4-19200 1Rx8 1.2V SODIMM 260-Pin Memory Module at Amazon.com
SK Hynix 8GB DDR4 1Rx8 PC4-2400T HMA81GS6AFR8N-UH SO-DIMM Laptop RAM Memory at Amazon.com
SK Hynix 8GB DDR4 1Rx8 PC4-2400T HMA81GU6AFR8N-UH Desktop RAM Memory Used - Walmart.com
Memory stick 1rx16 or 1rx8 - Dell Community
What does the 1Rx8 mean vs. 2Rx8 for RAM and are they compatible? (5 Solutions!!) - YouTube