Dell r740 PCIe Expansion Kit

Good Morning,

I am currently gathering parts to enable U.2 media support in my r740.

My understanding is that

     PCIe Extender SSD Controller Card, Dell P/N 1YGFW

enables U.2 support.

I need part numbers available for the interface cable and an 8-port backplane that supports the card/cable combo.

Thanks in advance for your assistance.