usb to 4 serial port db9 adapter

The StarTech ICUSB234854I USB to 4 Serial Port DB9 Adapter enables you to add four RS232, RS485, or RS422 serial ports to your computer through a single USB connection. Each port features a DB9 male connector and supports data rates up to 921.6 Kbps, making it suitable for connecting industrial equipment, POS systems, and legacy devices. The adapter includes built-in 15kV ESD protection to safeguard against electrostatic discharge, ensuring reliable operation in demanding environments.

This adapter is bus-powered, eliminating the need for an external power supply, and is compatible with Windows, Linux, and macOS operating systems. It uses the FTDI chipset for broad driver support and stable performance. The compact design allows for easy portability, and the included USB cable provides flexible placement. Ideal for applications requiring multiple serial connections, such as barcode scanners, printers, and industrial controllers.