10pcs DC Power 5.5mm x 2.1mm Male Plug To 3.5mm x 1.35mm Female Jack Adapter
DC Power Plug Connector

Male:
Outside Diameter: 5.5mm
Inside Diameter: 2.1mm

Female:
Hole Diameter: 3.5mm
Pin Diameter: 1.35mm
 
Package included:
3.5mm x 1.35mm dc power adapter
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