Questions about WD Black 3D NAND

Have you ever done a bios update on your mainboard? Do you have several m2 interfaces on your mainboard?

Yes, you can either install them underneath the CPU or under the metal cover of the chipset.

does not seem to be the case according to this list... (I don't know enough about WD myself) https://www.wdc.com/content/dam/wdc/website/downloadable_assets/eng/flyers/4078-810007.pdf