This custom connector is a single-row, 7-pin, standard male header designed for Seeed Studio XIAO Series development boards. We input 5 pieces of these female socket headers in one box, for your multiple needs, and standby applications as well. A male pin header consists of one or more rows of metal pins molded into a plastic base, often 2.54 mm (0.1 in) apart, though available in many spacings. Using a compatible male header is very helpful for your MCU boards connecting electron devices as it is a form of electrical connector. Due to their simplicity, it is a cost-effective way to extend your projects.