Startech USB 2.0 to RS422 Serial Adapter

  • RS Stock No. 123-8050
  • Mfr. Part No. ICUSB422
  • Manufacturer Startech
Technical data sheets
Legislation and Compliance
RoHS Certificate of Compliance
COO (Country of Origin): TW
Product Details

ICUSB422 USB to Serial RS422 Adapter

The ICUSB422 6ft Professional RS422/485 USB Serial Cable Adapter with COM Port Retention lets you connect RS422 or RS485 serial devices to your USB-enabled computer. The adapter features a 9-pin (DB9) male serial connector as well as dipswitch controls for easy port configuration, and requires minimal software.

The serial adapter is USB-powered, eliminating the aggravation of requiring an external power adapter. With COM port retention, assigned port settings are saved, so you can disconnect and reconnect the adapter with virtually no configuration required on the host computer.

The ICUSB422 is backed by a 2-year warranty and free lifetime technical support.

Features & Benefits

• USB to Straight-Through RS422/485 Serial Adapter
• Supported baud rates from 300bps to 921.6 Kbps
• Being able to rename devices no matter how many are plugged in
• Supports COM Port retention
• Configurable port for RS422 or RS485 support
• Supports RS-485 Auto Transceiver Turn Around by Unique Featured ATTA Hardware
• Backwards compatible with USB 1.1
• Integrated adapter and cable eliminates the need for additional cables
• Two interface modes 4 wire RS422(TxD+/-, RxD+/-), and 2 wire RS485 (DATA+, DATA-)
• 120 OHM terminator that can be Enabled/Disabled by DIP switch
• Transmission Echo for RS485 collision detection
• USB Powered - no power outlet required, and no cumbersome AC adapter to carry around
• Supports high speed RS-422/RS-485 communication up to 921.6kbps
400% faster than most USB to RS-232 adapters
• COM retention saves the assigned port settings for the device, so disconnecting/reconnecting is hassle-free


• Ideal for connecting serial RS422/485 devices to notebooks or tablet PC’s through an available USB port
• Perfect for controlling/diagnosing manufacturing machines(CNC, Process Control Equipment, Bar Code Scanners, Serial Printers)
• Security device control (key panels, cameras, card readers)
• Great for Industrial programmers looking to test new code with serial devices
• Adapting and expanding POS systems
• Communicating with test and monitoring equipment.
• Connect and program LED and Digital signage boards with serial communication ports

What’s in the package?

• USB to RS422/485 Serial Adapter
• Driver CD
• Installation Guide

2 : Next working day
140 Within 5 working day(s) (Global stock)
Price (ex. GST) Each
$ 122.62
(exc. GST)
$ 141.01
(inc. GST)
Per unit
1 +
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