DC Power Barrel Connector Converter - X3 (5.5x2.1mm to 5.5x2.5mm )
One end of this
connector converter is a 5.5mm x 2.1mm female jack, the other
end is a 5.5 x 2.5mm male plug:
Plug the female
end to a 5.5x2.1mm male connector, and this converter tip will convert the
5.5x2.1mm male connector to a 5.5x2.5mm connector.