Feature:
DC 6.3 mm x 3.0 mm male to DC 5.5 x 2.1mm female adapter Coupler
Good electrical conductivity and corrosion resistance.
Power supply from 5 volt DC to 6.3 mm x 3.0mm DC port from DC 5.5 x 2.1mm female port.
This conenctor is fit for small electronics and devices which use a 6.3 mm DC barrel jack to a power cable.
This DC 6.3*3.0mm port adapter for Toshiba Satellite, Lenovo IdeaCentre laptop, etc.

Specification:
DC 6.3 mm x 3.0 mm male to DC 5.5 x 2.1mm female adapter Coupler
Connector 1: DC 5.5x2.1mm Female Jack
Connector 2: DC 6.3x3.0mm Male Plug
DC 5.5x2.1 Female Jack to 6.3x3.0 Male Adapter
DC plugs power converter, used for external power source and on-board transformer.

Package included:
1 x DC 6.3 mm x 3.0 mm male to DC 5.5 x 2.1mm female adapter Coupler