Jumper wires are must-have components in DIY electrical projects. But what exactly are they? Learn the basics here and find out more. A jump wire (also known as jumper, jumper wire, DuPont wire) is an electrical wire , or group of them in a cable, with a connector or pin at each end (or sometimes without them – simply "tinned"), which is normally used to interconnect the components of a breadboard or other prototype or test circuit, internally or with other equipment or ... This is 20CM Dupont Wire Color Jumper Cable , 2.54mm 1P-1P Male to Male 40PCS. A very Flexible and easily detachable cable to the no. of wires according to your requirement. Jumper wires are components in electronics that allow rapid and flexible connections between circuit elements without soldering. They constitute an indispensable tool for hobbyists working with Arduino and professionals who wish to prototype complex systems. Jumper wires reduce circuit design in two common forms: male-to-male, male-to-female, and female-to-female-which have different connection requirements. These are insulated copper, ensuring reliable conductivity and durability. Jumper ...