Adapter 5.5x1.7mm male plug to 5.5x2.1mm female jack DC Power
Type: Converter/Adapter
Connector A:5.5X1.7mm maleNickel plating
Connector B :5.5X2.1mm femaleNickel plating
Impedance: 50Ω
Screw Thread Type: English
Body Material: Brass
Insulators: PTFE