Basicvolt DC 5.5 2.1mm Reverse Polarity Converter Cable Plug Universal AC Adapters and Keyboard Guitar Effect Pedal

This is a reverse polarity cable. One male plug and one female plug. Reverse Polarity what you want, fit for keyboard and guitar effect pedal., 5.5mm x 2.1mm male plug and female plug, 15cm cord length., Use to reverse the center Positive output to center Negative or reverse the center Negative to center positive., Made by Basicvolt, quality and durable. Max. support 3A Amp current., Applicable only to power adapters with 5.5*2.1mm plug end.