Male to Female Jumper Wires 40 Pin

The Male to Female Jumper Wires 40 Pin set is one of the most useful accessories for electronics prototyping, testing and DIY project wiring. Supplied as a 40-wire multicolour strip, each jumper is approximately 200mm long and can be separated individually or kept together as a ribbon for neat multi-signal connections. One end is fitted with a male Dupont-style pin, while the other end has a female socket, allowing you to connect male header pins to female receptacles without soldering. These jumper wires are designed for standard 0.1-inch / 2.54mm pitch headers, the most common spacing used on Arduino boards, ESP32 and ESP8266 modules, STM32 boards, Raspberry Pi GPIO headers, breadboards, sensor modules, relay boards, motor driver boards and display modules. The male end can plug into a solderless breadboard or female header, while the female end easily fits onto module pins or development board GPIO pins. This male-to-female format is especially useful when you need to connect a board with male pins to a breadboard row, or extend a signal from a module into a test circuit. The wires are flexible, colour-coded and convenient for identifying power, ground and signal lines during prototyping. Because the strip contains 40 individual leads, it can be used for simple single-wire connections or for multi-pin wiring such as LCD modules, sensor arrays, keypads, communication buses and GPIO breakouts. It is intended for low-voltage electronics prototyping and signal wiring, not high-current power applications. In the box you get one 40-pin male-to-female jumper wire strip, typically in rainbow colours, with 20cm cable length and 2.54mm compatible Dupont terminations. It is a practical, low-cost consumable for hobbyists, engineering students, robotics builders, embedded developers and repair technicians.