This the optical drive ribbon cable that connects the optical drive interposer to the motherboard for the Inspiron 17 (3780) laptops. Sometimes referred to as the ODD Cable.
Compatible Dell Laptops/Notebooks:
Inspiron 17 (3780)
DPart Number: K9RV0
Alt Part Number's:
EDI73_ODD_BOARD_FFC
ED173_ODD_BOARD_FFC
NBX0002IR00