40Pcs - DuPont - Male to Male - 20cm

40Pcs DuPont Jumper Cable – Male to Male – 20cm – Technical Specifications:

Handy Tips for Using the 40Pcs Male to Male DuPont Jumper Cables – 20cm:

1: Male to Male jumper cables are used to connect two breadboard points or two male pin headers directly together. They are the most commonly used cable type for pure breadboard prototyping — routing signals and power between rows, bridging sections, and connecting components across the board.

2: The 20cm length is the most versatile all-round size — long enough to reach comfortably across a full-size 830-point breadboard or connect to an adjacent module, but short enough to keep your workspace neat and tangle-free. For very compact builds, the 10cm variant is a tidier option; for widely spaced components, the 30cm variant gives extra reach.

3: The multicolour wires are not just cosmetic — use a consistent colour convention throughout your project to make debugging easier. A common convention is: Red = VCC/Power, Black or Brown = GND, Yellow = Signal, Blue = SDA, Green = SCL, Orange = TX, White = RX.

4: DuPont connectors are designed for repeated insertion and removal, but excessive force or sideways stress will loosen the pin contacts over time. Always insert and remove connectors by gripping the plastic housing — never pull by the wire itself.

5: These cables are fully compatible with standard 2.54mm pin headers, Arduino boards, Raspberry Pi GPIO, ESP8266/ESP32 modules, breadboards, and most development boards and sensor modules available on the market. For connections to female pin headers or module sockets, use Male to Female cables instead.