Note: It doesn’t work for every computer and it is possible only when the drive is set to AHCI mode.

We’ve discussed 3D NAND multiple times before - the basic idea is that by standing the NAND stack on its head and working downwards, it’s possible to build a NAND structure that holds a great deal more data per square millimeter - or at least, that’s the eventual goal. So, if Samsung magician says drive not supported, do try to recognize it by Inter Controller. Samsung has worked on the technology for years. The 850 Pro is the first SSD to deploy this method. The alternative to this approach is to adopt 3D NAND, also called V-NAND (Vertical NAND), and stand the entire die stack on its head. I should mention that I dont use RAPID mode mostly because of the risks involved with it and because AFAIK it can only be used on Windows and I spend most of time on Linux.

For years, that approach won us ever-falling prices and improved performance, but it came with a built-in timer - at each successively smaller process node, it became more and more difficult for manufacturers to ensure NAND would retain its speed and reliability for years. Anyway this is news to me as Ive used Samsung 850 and 860 EVO SSDs with an AM4 motherboard and didnt have any issue using recent Samsung Magician versions. Up until now, all of the advances in SSD technology have come from either shrinking the size of the memory cells through using smaller process nodes, or through packing more data into each cell. In the world of SSDs, the Samsung 850 Pro is a major achievement.

Samsung rapid mode not supported