A type symmetric usb receptacle

An A-type symmetric USB(Universal Serial Interface) receptacle is provided to prevent mistake connecting a plug in an incorrect direction with excessive force by detecting a direction of the received plug. An upper part includes a plurality of conductive terminals. A lower part includes a plurality of conductive terminals symmetrical to the upper part. A circuit unit(cnt1) electrically connects a USB plug(PG1,PG2) to a host controller or circuit through the connected upper or lower part by detecting whether the upper or lower part connects to the conductive terminal of the USB plug.