Two 2 TB MX500 SSDs from Micron with identical SKUs, but different innards.
<p>The SSD on the left was bought in 2018 and uses sixteen NAND flash ICs marked NW913 (1 terabit each, 64 layers).
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The SSD on the right was bought in 2021 and uses just four ICs marked NW953 with 4 terabit each (assumed to use 176 layers)
<a href="//commons.wikimedia.org/wiki/User:Phiarc" title="User:Phiarc">Phiarc</a>
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