How Do SSDs Work? ExtremeTech

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How Do SSDs Work?
Here at ExtremeTech, we’ve often discussed the difference between different types of NAND structures – vertical NAND versus planar, or MLCs versus TLCs and QLCs. Now, let’s talk about the more basic relevant question: How do SSDs work in the first place, and how do they compare with newer technologies, like Intel’s non-volatile storage technology, Optane?