This 40-way male-to-female Dupont jumper wire ribbon is designed for low-voltage electronics prototyping and development. Each ribbon contains 40 individually coloured jumper wires with a male pin connector at one end and a female socket connector at the other.

The wires are suitable for connecting development boards, breadboards, sensors, displays and other electronic modules that use standard 2.54mm header connections. They can be used with popular platforms including ESP32, Arduino and Raspberry Pi.

The 40 wires are joined together as a ribbon for convenient storage and organisation, but can be separated into individual leads or smaller groups as required. At approximately 15cm long, they are well suited to short internal connections and compact prototyping projects.

These jumper wires are intended for low-voltage electronics, signal and development use. They are not suitable for mains-voltage wiring or high-current applications.