Here is image from the R440 manual of how the cable routing is for the 10 x 2.5 hard drive backplane with NVMe. PERC cable is purple

Hello, thanks for choosing Dell. I think this is what you are looking for: 

Part #:P54J2

Part Desc.:  ASSY Cable SAS, PERC11, RR, X10 (from PERC11 adapter to X10 BP, for X10 HDD config)

However I do not have information on the length. Also another thing- this needs to be ordered along with NVME.

Hello,

Thank you for the reply. I called Dell Spare Parts but they said they could not find this part number P54J2. They said they would get back to me about the correct part.

Also, what does it mean when you say "this needs to be ordered along with NVME"?

Thank you.

Greenmtnit,

I think she meant the drives, but can't be certain. As far as the part number, that looks to be the only cable listed with those specific attributes. 

Would you be able to please connect me with someone who can help me buy this cable P54J2? Thank you.

Hello greenmtnit,

I am seeing P54J2 as an active part number. 

I would recommend to contact Spare Parts again.

I'm supplying an additional part number you can give them.

These part numbers are found in Service Parts Management Database.

For a PERC11 controller (H750) you would need this cable.

Part #:P54J2

Part Desc.:ASSY,CBL,SAS,PERC11,RR,X10,R44

ASSY Cable SAS, PERC11, RR, X10 (from PERC11 adapter to X10 BP, for X10 HDD config)

You can also give them this MOD part number that drills down to the same cable P54J2:

Part #3GNN9

Part Description:MOD,CBL,SAS,PERC11,RR,X10,R44