and Manual Share Switch Box for DB9 serial port devices DB9 serial port compatibility: suitable for DB9 pin port devices Easy manual switching: no software required, simply toggle between connected devices Convenient and cablefriendly: avoid unplugging and replugging wires when changing between devices Broad applications: widely used in securities market, education, and communication fields Reliable construction: designed for durable, longterm use with DB9 connections Key benefits Simplifies workflow: share a single DB9 serial port among multiple devices such as printers and computers without disconnecting cables Reduces wear and tear: minimizes connector wear from repeated plugging and unplugging Improves efficiency: faster switching between devices during work or testing without downtime Trusted for critical environments: suitable for professional settings in securities, education, and communications Use scenarios Securities market workstation: one DB9 serial port shared between a computer and a peripheral printer; switch as needed to maintain efficient operations Educational lab: instructors and students access a single serial device from multiple computers without constant cable reconfiguration Communications and testing setup: quickly alternate access to a DB9 serial device across multiple host systems for troubleshooting or data collection Note: This product is described as and of , with a focus on function, compatibility, and practical performance for DB9 serial port devices.