Installing SSD's in Dell Precision Tower T7910

Can anyone identify the following cable assy.?  PWRC1

This would be part of a kit (RP2K5 I believe) for adding 2.5in SS drives to a T7910. There appears to be some confusion on a SAS connector in this cable assy. This is 'a bundled data/power cable that can be used for the embedded storage or the add-in card storage. I'm guessing 'embedded storage' means the SAS connector on the mother board and "add-in card storage' means a PERC (daughter) card added to the system, which uses a different SAS connector. The cable assy. I'm trying to identify should have a  SAS connector compatible with the embedded SAS connector on the mother board.

I have a cable assy., T5C70 which is correct EXCEPT for the SAS connector, which appears to be for a PERC card.