D-Sub connectors are a popular and versatile type of electrical connector characterized by their D-shaped metal shell. These connectors feature multiple pins arranged in two rows, providing a reliable interface for transmitting signals between electronic devices. D-Sub connectors are widely used in various applications, including data communication, industrial automation, and instrumentation. Available in different sizes and configurations, D-Sub connectors offer a standardized solution for connecting and interconnecting electronic components in diverse electronic systems.