Polygon connector

The present invention provides a polygon connector comprising a first electrical connection part, a second electrical connection part, an enhanced part, a plurality of first terminals, and a plurality of second terminals. The enhanced part includes a single body, a plurality of plug parts, a plurality of first extension parts, and a plurality of first welding parts. The plug part, the first extension part, and the first welding part are connected to the single body. The first welding parts are connected to the single body through the first extension part so as to be able to be arranged on the external first printed circuit board. Wherein, the plug parts are disposed of corresponding to the first plug grooves of the first electrical connection part for positioning. After the first electrical connecting portion is combined with the enhanced part and the first terminals, the first electrical connecting portion is fixed to the first printed circuit board through the enhanced part and the first terminals, and the