This is the cable that connects the USB / SD Reader / Ethernet Port IO Board to the motherboard, for the Dell Inspiron 15 (5580) and Vostro 5581 laptops.
Compatible Dell Laptops:
-Inspiron 15 (5580)
-Vostro 5581
Dell Part Number: XMTFJ
Alt Part Number's:
BUCKY 15 IO CABLE
450.0F804.00