2-Port USB Serial Adapter/USB to Dual DB9 RS232 Adapter

The StarTech.com 4m 2-Port USB to Serial Adapter offers a dependable solution for connecting serial devices to modern computers via USB-A. Featuring two RS-232 ports with COM retention, this adapter ensures stable and continuous communication with serial peripherals.

Designed with versatility in mind, it includes interchangeable screws and nuts allowing secure attachment to various serial devices and cables. Each port is equipped with dedicated send and receive LED indicators, providing real-time monitoring of data transmission, while the USB LED confirms successful connection to your desktop or laptop.

Constructed with a solid one-piece TPE housing, the adapter delivers enhanced durability and longevity. It incorporates level 4 ESD protection (15kV air/8kV contact) to safeguard against electrostatic discharge, and copper shielding minimizes EMI/RFI interference. Gold-plated connectors ensure reliable signal transmission, and a mounting bracket is included for convenient installation.

This adapter is compatible across multiple operating systems including Windows, macOS, ChromeOS, and Linux, making it a versatile choice for professional and personal use. Its compact design and robust build quality make it ideal for environments requiring consistent serial communication.

Whether you need to connect legacy serial devices or industrial equipment, the StarTech.com 4m 2-Port USB to Serial Adapter provides a high-quality, reliable interface to keep your systems running smoothly.