Kingston 4GB DDR3 1600MHz RAM for Desktop 1Rx8 PC3L-12800U Good condition 1.35v | eBay
What does the 1Rx8 mean vs. 2Rx8 for RAM and are they compatible? - YouTube
What does the 1Rx8 mean vs. 2Rx8 for RAM and are they compatible? (5 Solutions!!) - YouTube
Single Rank Memory vs. Dual Rank Memory (vs Quad Rank Memory) - OEMPCWorld
Lot of 33 Mixed Hynix Samsung Nanya 1GB 1Rx8 2Rx8 PC3-10600S RAM Memory • TechRenew
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