What does the 1Rx8 mean vs. 2Rx8 for RAM and are they compatible? - YouTube
Ddr4 Ram 16gb 8gb 32g 64g 2rx4 2rx8 1rx8 Pc4 Reg Ecc Rdimm Ram 3200mhz Support To Dell Emc Poweredge R750 Server Memory Upgrad - Rams - AliExpress
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
Conclusion: Two Ranks and 1DPC For Thee - DDR5 Demystified - Feat. Samsung DDR5-4800: A Look at Ranks, DPCs, and Do Manufacturers Matter?