HP DL20 Gen10 Supported M2 Hardware

Hi there,

i search since arround an hour, but i didn't found any answer. So i feel free to ask here in the support forum and hope to get an answer.

What kind of M2 is supported in the DL20 internal Slot? Just for Information, it's for Homeuse, so it's not critical.

I tried to use an Transcend SATA M2 but those didn't get regnoized. So i think M2 PCIe should be the correct way?
Or is there a signature lock that there is only hp branded hardware supported?

Thanks in advance
Manuel