storage Adapter BOSS-S2-PCI

Hello.

I have a dell poweredge R6525, It's a Esxi node and boot from SD Card. The server not have

I need to upgrade Esxi and the new version not support install/upgrade to SD Card.

So I think to add a with M.2 disk.

I attach photo that show the connector to attach control cable for storage Adapter BOSS-S2-PCI.

Which type of cable should be connected in the sockets highlighted in yellow ?
I can't find the correct part number of the necessary cable.

Thanks