Imagine if there is no connector will be like? Then use a continuous conductor between the circuit permanently connected together, for example, the electronic device to be connected to the power supply, you must connect both ends of the wires, and electronic devices and power by some means (such as welding) fixed firmly. As a result, both for the production or use, we have a lot of inconvenience. A car battery, for example. Assuming that the battery cable is secured to weld the battery, automobile production plant to install batteries increased workload, increased production time and costs. When the battery needs to be replaced is damaged, but also the car to a repair station, desoldering demolition of the old, and then solder the new, this should pay more labor costs. With connectors you can remove a lot of trouble, from the store to buy a new battery, disconnect the connector, remove the old battery, install a new battery, reconnect the connector on it. This simple example illustrates the benefits of the connector. It enables the design and production process more convenient, more flexible, lower production and maintenance costs.