I believe you are planning to connect as per "Figure 11. Cabling Diagram—3.5 Iinch (x12) SAS/SATA Backplane—PowerEdge R720xd" of below link. D4J0Tis the correct part number of SAS cable for this. [URL] 
I have a second-hand R720xd with the 3.5" (x12) SAS backplane. It came with the LSI SAS9207-8i controller and is cabled as such, but I need RAID. So I bought a PERC H710 mini monolithic card and need to know which SAS cable will correctly connect the backplane with the mainboard. I *think* it's the D4J0T, but I don't want to buy the wrong thing. Thanks for any help!
Which SAS Cable for R720xd and PERC H710 mini mono?