What do the numbers of M.2 drives tell?


I’m looking for let’s say a WD Black SN850X NVMe SSD 1 TB SSD. So far so good.
But the number SN850x, what’s the meaning of it?
I also found the numbers SN550, SN750, SN570, SN770, SN500, SN530, SN700 and these are NUMBERS I just found.
Can someone explain this to me?
Then there are also the 4 colors, meaning of them are known to me. Makes it not easier to know what to buy.

Hi @Kos ,

Have you opened a Support Case? If not opened, for more information, please contact the WD Technical Support team for the best assistance and troubleshooting: