PACKAGE CONTENT - Tip Adapter Connector Converter 7.4x5.0mm to 4.5x3.0mm 30cm DC Power Connect Specification - Type: DC Converter Cable ; Total Length: 30cm / 11.81' ; Converter INPUT: 7.4mm*5.0mm Female ; Converter OUTPUT: 4.5mm*3.0mm Male with pin Features: Tip Converter Adapter Cable for Converting 7.4 x 5.0mm Big Round Tip With Pin to The New 4.5x3.0mm Tip with Pin CONNECTOR - one side is 7.4x5.0mm female plug, another side is 4.5x3.0mm plug NOTED - Please make sure the Tip Connector size of the ac adapter are identical to what your need before buying.