Overview
Stop fighting with loose connections! Our Female to Female (F-F) Jumper Wires (also known locally as Hole-to-Hole wires) are designed for reliable, “click-in” connections between modules. Whether you’re linking an I2C LCD to an Arduino or an NRF24L01 to a Raspberry Pi, these Dupont-style cables ensure your signal stays clean. They come in a 40-pin “rainbow” ribbon that can be easily peeled apart into single wires or smaller groups to keep your project wiring neat and organized.
Key Features
Universal Fit: Standard 2.54mm (0.1″) pitch connectors compatible with almost all hobbyist electronics.
Rainbow Color Coding: 10 different colors make it easy to track which wire goes where (e.g., Red for VCC, Black for GND).
High Flexibility: Multi-strand copper wire allows for repeated bending without snapping.
Customizable: Easily peel off exactly the number of wires you need (1-pin, 4-pin for I2C, 8-pin for SPI, etc.).
Variation Guide: Which length do you need?
| Length | Best Used For |
| 10cm (Short) | Ultra-compact projects, wearable tech, and internal wiring in small project boxes. No “spaghetti” mess. |
| 20cm (Standard) | The “Goldilocks” length. Perfect for connecting sensors to an Arduino on a desk. Most popular for students. |
| 30cm (Long) | Large-scale projects, RC cars, or connecting a screen mounted on a box lid to a controller inside the base. |
Technical Specifications
Connector Type: Female to Female (Hole to Hole)
Pitch: 2.54mm (Standard)
Quantity: 40 wires per ribbon
Material: PVC Insulation + Copper Core
Max Voltage: 300V
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