Overview Reviews Product Description Changes centre negative polarity to centre positive (and vice versa). 2.1mm (M) red to 2.1mm (F) black right angle DC connector. Product Videos Custom Field Product Reviews Write a Review Write a Review × CARSON DC Power Polarity Reversing Cable Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *