Transform your electronics projects with these versatile 2.54mm male header pins. This 40-pin single row breakaway connector is designed for PCB applications, featuring the standard 0.1-inch pitch that's compatible with most breadboards and prototyping setups. The breakaway design offers flexibility - use exactly the number of pins you need for your project. These header pins from QuaintByte come in a compact package measuring 4 x 0.447 x 0.098 inches, making them easy to store and handle. Perfect for custom Arduino shields, DIY electronics, and professional PCB designs, these connectors ensure reliable mechanical and electrical connections. The package includes one set of header pins, ready for immediate use in your next electronics project. No batteries required, these passive components are essential for any maker's toolbox.