Female headers are core pluggable connectors used in electronic circuits to mate with pin headers, serving as the receiving end for board-to-board/board-to-wire electrical connections. Through plugging and unplugging with pin headers of the same specification, they enable detachable signal and power transmission between PCBs and between PCBs and peripherals/cables. They are fundamental and universal components that appear in pairs with pin headers in electronic interconnect systems, and are standard interconnect accessories for the vast majority of electronic devices with PCBs.