Adafruit Premium Female/Male 'Extension' Jumper Wires - 40 x 12" (300mm)

These premium jumper wires are designed to create efficient wire harnesses or jumper connections on printed circuit boards. Each wire in the strip of 40 measures 12 inches (300mm), featuring a mix of ten vibrant rainbow colors, with four pieces of each color. The wires are equipped with 0.1-inch male and female header contacts, allowing for seamless integration into standard-pitch 0.1-inch headers.

The design includes a 40-pin ribbon cable, enabling you to either separate the wires for individual use or maintain them together for a more organized approach. Available in three convenient lengths—3 inches (75mm), 6 inches (160mm), and 12 inches (300mm)—these jumper wires offer versatility for various projects. For those needing different configurations, male-to-male and female-to-female types are also available.

An important note is the jumper wire length occasionally exceeding the listed measurement, which enhances connection flexibility. Optimal use involves aligning the external "silver latch bit" side, slightly wider than 0.1 inches, when arranging wires in a line.