PCB headers are a type of electrical connector. Typically, one side of the header is comprised of a series of pins that are soldered to the printed circuit board (PCB) surface.
PCB Mounting Connectors
Printed circuit board connectors (more often shortened as PCB connectors) are a type of electrical connector, made up of a housing and contacts which join sections of circuits together on PCBs, namely boards where conductive tracks for electronic components are printed.