Male Header Pin.

The Male Header Pin 1×40 2.54mm Right Angle is a versatile PCB connector designed for creating reliable electrical connections in electronic circuits and development projects. Featuring 40 pins arranged in a single row with the industry-standard 2.54mm (0.1-inch) spacing, this connector is widely used in Arduino, Raspberry Pi, ESP32, STM32, sensor modules, and custom PCB applications.