20cm Female to Female Jumper Wires (40 PCS) for Arduino, ESP32 & Breadboards

20cm Female to Female Jumper Wires – 40 PCS (Dupont Breadboard Cables)

These 20cm Female-to-Female Dupont Jumper Wires are an essential prototyping accessory for any electronics workbench. The 40-piece set comes in multiple colors for easy circuit tracing, and the flexible silicone-insulated wires maintain their shape without tangling during use.

Key Specifications

• Length: 20cm (200mm)
• Connector Type: Female to Female (F-F) Dupont
• Quantity: 40 pieces
• Pitch: 2.54mm (0.1") standard
• Wire Gauge: 26 AWG flexible stranded copper
• Insulation: PVC / flexible jacket
• Color: Multi-color assortment

Compatibility & Use Cases

These F-F jumper wires are compatible with all standard 2.54mm pitch male headers and are widely used with Arduino, ESP32, Raspberry Pi, NodeMCU, and sensor modules. Common uses include:

• Connecting sensor modules directly to dev board GPIO pins
• Breadboard-to-module wiring for IoT prototypes
• Linking display modules (OLED, LCD) to microcontrollers
• Rapid prototyping without soldering
• STEM kits and classroom electronics projects

Color-coded wires make debugging and circuit documentation fast and intuitive.

Frequently Asked Questions

What does female to female mean?
Both ends of each wire have a socket connector. They plug onto male header pins, such as the GPIO pins on a Raspberry Pi or the male headers on sensor modules.

How many wires are in the pack?
40 wires on a ribbon. You can peel off exactly the number you need, from a single wire to a 10-way cable, keeping multi-pin connections neat.

Will these fit my breadboard?
No, breadboards need male ends. Female-to-female wires connect two sets of male pins together. For breadboard work, pair these with male-to-male or male-to-female jumpers.

Are they safe for 5V and 3.3V signals?
Yes. These wires carry logic-level signals and small power loads for sensors, displays and modules. They are not meant for mains voltage or high-current motor wiring.

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