EopZol&trade; DC Power Female 5.5 x 2.1mm to 6.0 x 4.4mm Male Plug Jack Adapter Connector DC Power Female 5.5 x 2.1mm to 6.0 x 4.4mm Male Plug Jack Adapter Connector 5.5 X 2.1 mm Jack to 6.0mm x4.4mm PIN Adapter DC Power adapter One end: 6.0(out side Diameter) x4.4 mm (inside Diameter) male PIN INSIDE One end: 5.5x2.1 mm female