My Gigabyte Z370 2nd slot M2 is not detecting WD hd

[jaber2]

Hello,
I appriciate any help, I have purchased a Gigabyte Z370 Gaming 7 and already installed one M2 drive on slot M2A_32G, I installed Windows 10 and wanted to add the second M2 drive on slot M2P_32G but the motherboard does not see it at all, have you seen this before?

Do you have any questions about the components?

 

[alexoiu]

Hi, What interface are the M.2 drives: SATA, or PCIe?