The Cable-Blue/R features a right-angle jack that allows users to power effect units that use a 3.5mm phone plug connector with tip-positive polarity. The Cable-Blue/R can be connected to any male jack on the Cable-5 Daisy Chain, Cable-Y Splitter or directly to the PA-9 itself. Note that to achieve tip-negative polarity from the Cable-Blue/R, simply attach a Cable-Red in between it and the power source.