40 Ways Male to Male Jumper Wire

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  • Male to Male
  • Male to Female
  • Female to Female
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Note: This page consists of 3 different types of 20 cm jumper wires. Please select your preferred option.

Male to MaleMale to FemaleFemale to Female


These are very handy 40-way 20 cm length of rainbow jumper wires. You will need it for making wire harnesses or jumpering between headers on PCBs. These premium jumper wires are a little over 7.9" (20cm) long and come in a 'strip' of 40 (4 pieces of each of ten colors). They have 0.1"(100 mils) sockets on either end and fit cleanly next to each other on standard-pitch 0.1" (2.54mm) header. You can always pull the ribbon wires off to make individual jumpers, or keep them together to make neatly organized wire harnesses. And with these features, these jumper wires are very suitable for Raspberry PiMaker UNO, breadboards, and other microcontrollers. 

For example, this is one of the male (square) to female jumpers:


For example, this is one of the female to female jumpers:


Wires are the connecting parts of a circuit. Jumper wires are small wire ducts that can be used to connect components to each other on breadboards or elsewhere. This jumper wire provides easier connections without the need to solder.

The colors are arranged in sequence of 10s at the consists of:

  • Brown
  • Red
  • Orange
  • Yellow
  • Green
  • Blue
  • Purple
  • Grey
  • White
  • Black

That is the reason sometimes these jumper wires are called Rainbow wires.

Note: The length of the jumper wires is sometimes a bit longer than what is listed.

For best results, when plugging these in a line, have the sides with the 'silver latch bit' sticking out since that side is a tiny bit wider than 0.1"

Packing List
  • Male to Male
    • 1 x  40-Way 20cm Male to Male Jumper Wire


  • Male to Female
    • 1 x  40-Way 20cm Male to Female Jumper Wire


  • Female to Female
    • 1 x  40-Way 20cm Female to Female Jumper Wire

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Tags: Jumper wire, 40pin, RPI GPIO, GPIO, Raspberry Pi, Arduino