This is a 40-pin 2.54mm male to female Dupont wire. It is great forArduino/Maker/3-D Prin-ter control board, DIY experiment.

Features:
For DIY experiment / Electronic projects / Arduino breadboard / PCmotherboard / P-CB project
Standard 2.54mm pitch dupont housing connector / 1pin-1pin
40 pin male to female jumper wires
Portable design and easy to use.

Specification:
Cablelength: 20cm
Type: Male to female
Item weight: Approx.31g / 1.09oz
Package size: 14 * 9.5 * 2cm / 5.51 * 3.74 * 0.79in(L * W * H)
Package weight: 31g / 1.09oz

Package list:
1 * Breadboard Jumper Wires