StarTech ICUSB2322I: 2-Port Industrial USB to Serial Hub with DIN Rail Clips & Wall Mount

Meet a rugged, industrial-grade USB to RS232 expansion solution: the StarTech ICUSB2322I 2-Port Industrial USB to Serial Hub. This compact, metal-constructed hub converts a single USB port into two reliable RS232 serial ports, enabling you to connect, monitor, and control multiple serial devices in harsh environments. Designed for industrial automation, manufacturing floors, and harsh-control cabinets, it combines robust mounting options, a dependable FTDI-based chipset, and flexible COM port retention to keep your serial communications stable across reboots and power cycles. Built to withstand demanding conditions, the ICUSB2322I is an essential tool for engineers, technicians, and IT professionals who need dependable serial connectivity alongside compact, space-saving design.

• Flexible, rugged mounting options: The ICUSB2322I ships with top-hat DIN rail clips for secure DIN-rail installation in control panels, plus sturdy wall-mount brackets for fixed-position use. This dual mounting flexibility makes it ideal for industrial cabinets, server racks, or workstation setups, helping you optimize space and simplify cabling in crowded environments.
• Two RS232 serial ports via DB9 connectors: Expand your serial capabilities with two independent RS232 interfaces, allowing you to connect two serial devices or systems at the same time. The DB9 ports are native to the device, delivering reliable serial communication for sensors, PLCs, barcode scanners, CNC equipment, and legacy peripherals.
• FTDI-based chipset with reliable drivers and COM port retention: Powered by a dependable FTDI engine, the ICUSB2322I delivers solid compatibility and broad driver support across operating systems. A standout feature is COM port retention, ensuring your assigned COM port numbers persist after reconnects, reboots, or drivers updates—minimizing downtime and reconfiguration.
• Industrial-grade, durable enclosure: Encased in a rugged metal housing, the ICUSB2322I is engineered for tough environments. Its sturdy construction helps resist interference, vibrations, and temperature fluctuations common in manufacturing floors, machine rooms, and industrial installations.
• Plug-and-play USB connectivity with broad OS support: The portable, bus-powered design plugs directly into a USB port on a PC, embedded controller, or industrial computer. Supported operating systems typically include Windows, macOS, and Linux when using FTDI drivers, enabling broad compatibility across diverse deployments without requiring a powered external supply.

Technical Details of StarTech ICUSB2322I

• Port count: 2 RS232 serial ports
• Interface: USB 2.0 connectivity to two RS232 serial channels
• Connectors: 2 x DB9 serial ports for reliable RS232 connections
• Chipset: FTDI-based USB-to-serial controller for stable performance and broad driver support
• Mounting options: Top-hat DIN rail clips included for DIN-rail mounting; wall-mount brackets included for fixed installations
• Enclosure: Industrial, rugged metal housing designed for harsh environments
• Power: Bus-powered via USB; no external power supply required in standard setups
• Operating system compatibility: Wide driver support with FTDI drivers on Windows, macOS, and Linux
• Certificate/Compliance notes: Built to meet common industry standards for USB-to-serial adapters and industrial hardware

How to install StarTech ICUSB2322I

• Choose your mounting approach: mount the ICUSB2322I on a DIN rail using the included top-hat DIN rail clips for cabinet installations, or attach the unit to a suitable wall surface with the provided wall-mount brackets.
• Connect your serial devices: plug two RS232 devices into the DB9 ports on the hub, ensuring correct polarity and cable type for each device.
• Connect to a host: insert the USB connector into a free USB port on your computer, industrial PC, or controller. The device is bus-powered from the USB port, so no extra power supply is typically needed.
• Install drivers if required: on Windows, macOS, or Linux, install or update FTDI drivers as prompted to enable the COM port assignments and reliable serial communication. In many environments, the OS will automatically recognize the device and assign COM ports.
• Configure software and ports: open your serial application, select the appropriate COM ports corresponding to the two RS232 channels, and configure baud rate, parity, data bits, and stop bits per device requirements. Test communication with each serial device and verify data transfer and control commands.
• Validate retention and testing: after installation and a restart or driver update, verify that the OS retains the same COM port numbers for stable, repeatable operation in automation workflows or monitoring software.

Frequently asked questions

• What exactly is the ICUSB2322I? It is a robust, industrial-grade USB-to-RS232 hub that provides two independent RS232 serial ports from a single USB connection, with mounting options for DIN rails and walls, and features COM port retention for consistent port assignments.
• How many serial ports does it offer? The device provides two RS232 serial ports via DB9 connectors, enabling simultaneous communication with two serial devices or controllers.
• How can I mount it? It includes top-hat DIN rail clips for DIN-rail mounting in control panels and sturdy wall-mount brackets for fixed installations, giving you versatile mounting options in tight spaces or open environments.
• Does it keep COM port numbers? Yes. The ICUSB2322I supports COM port retention, preserving your port assignments across reconnects and driver reloads, which helps avoid reconfiguration in automation and monitoring workflows.
• What driver support is available? The FTDI-based chipset provides broad driver support across Windows, macOS, and Linux. In most cases, the device will install automatically, but you may need to install FTDI VCP drivers for full functionality on some systems.
• Is it suitable for industrial environments? Yes. The rugged metal enclosure, combined with DIN rail and wall-mount options, makes it well-suited for industrial automation, SCADA systems, PLCs, POS devices, and other harsh environments where reliable serial communication is essential.
• Do I need external power? The ICUSB2322I is typically powered via USB; no external power supply is required for standard use, making deployment straightforward in most setups.