This is a replacement dongle connection wire harness for the 630w/700w/800w ROKKER XXRP 4-ch programmable amplifier, if it has been lost or misplaced.
This cable allows DSP download updates to be loaded into the amplifier from selected program files on the J&M website.
Cable includes a standard USB plug on one end, with the specific matching plug on the other end for the 630w/700w/800w ROKKER XXRP amplifier as shown.