Having read the service manual and user guide, I'm looking for additional help.  The G5 shipped with a 512GB M.2 PCIe NVMe SSD.  Can I add a 2nd one? If so how?  I only see a cable from the mainboard reaching to the carriers, but no power.  Or am I looking at that wrong?  If I can add, will this one work?  https://www.dell.com/en-us/member/shop/accessories/apd/AA543138

Thanks for any help!