Help needed identifying mystery cable

[poto]

After a teardown and rebuild of SM SC846 expander chassis into a DAS for backups, I realized I had an extra cable, pictured below. It is 65cm, labeled with 49113-oo REV A, LEOCO 2010/50.

The chassis was originally stocked with SM X8DAH+-F, but I don't see any matching connectors on motherboard or expander.

No luck so far with google either, but I'm hoping someone here can educate me on what this is.

Thanks!

 

[tigweld0101]

RGB cables. Clearly it's to hook up your SNES

 

[Tom5051]

Looks like some sort of LED activity cable or something though the conductors are larger than required. Not sure.

 

[thatoneuser]

Looks like some kind of a BBU cable.
Did you have a HW RAID controller installed or was the chassis an used one?