This cable is an electrical wire or group of them in a cable with a connector or pins at each end, which is normally for interconnecting the components of a breadboard or other prototype or test circuit, internally or with other equipment or components, without soldering.
Individual Dupont Cables are fitted by inserting their “end connectors” into the slots provided in a breadboard, the header connector of a circuit board, or a piece of test equipment.
Mostly it is useful with Orange Pi, Banana Pi, Raspberry Pi, Arduino, and other mini pc and development board. It is very useful in the PCB project, pc motherboard, as well as Breadboard connections. Additionally, it allows you to plug and unplug easily for prototyping and can be used over and over again.