In modern electronic and computer systems, jumper wires form the foundation for circuit connections, signal transmission, and device configuration. As short cables or wires, jumpers establish temporary or permanent connections within circuits, ensuring the smooth flow of current, data, or signals. This article, authored by a seasoned technical expert with over 10 years of experience, will guide you through an in-depth exploration of jumpers—covering their definition, operating principles, connector types, soldering possibilities, color meanings, component classifications, and usage methods.