Internal DC cable for 1GHz, 1.2GHz, 1.33GHz, 1.5GHz & 1.67GHz (1280x854 screen) models of the 15" Aluminium PowerBook G4. This cable will not fit the dual layer Superdrive version (1440x960 screen) of the 1.67GHz PowerBook. This cable connects between the combined DC-in/sound board and the logic board.