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Item#: N82E16812200169CVF

StarTech Model ICUSB2321X Professional USB to RS-232 Serial Adapter

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  • 2 Connector Number
  • Black

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The ICUSB2321X Professional grade USB Serial Adapter cable converts a USB 2.0 port into an RS232 serial port allowing you to connect to, monitor and control your serial devices. A durable, single cable design makes this the perfect solution for mobile technicians/administrators that require serial connectivity. Once connected, the USB to serial adapter retains assigned serial COM port values, allowing the same values to automatically be re-assigned to the port provided by the adapter in the event it is disconnected, then re-connected to the host computer.

This innovative adapter offers a professional grade solution for connecting legacy or industrial RS232 serial devices to more modern computers, or computers with unused USB ports - perfect for connecting serial modems, barcode scanners or any device with serial sync through USB, eliminating the expense of upgrading the serial peripheral for USB compatibility.

Backed by a 2-year warranty and free lifetime technical support.

Learn more about the STARTECH ICUSB2321X


USB to DB9 (RS-232)


Connector Number
Connector Detail
Connector Types 1 - USB A Female
Connector Types 1 - DB9 Male
OS Support : 32-bit Windows Vista, XP, 2000, Server 2000 and 2003. Limited functionality with Windows NT 4 and 64-bit systems (64-bit driver available in Downloads section)
Maximum Data Transfer Rate : 230 Kbps
Compatibility : Supports USB 1.1 and above


Baud Rate up to 230 Kbps
Being able to rename devices no matter how many are plugged in
Built in loopback testing for quick trouble shooting
COM Port assignments maintained across reboot
COM port settings are retained for serial devices plugged into different USB ports
Customizable software to take control of your serial devices
Designed to make serial port expansion quick and simple
Enables and disables enumerations
Name devices for quick identification when using multiple COM ports
Powered by an available USB port
Provides dual buffers for upstream and downstream data transfer
Records and logs how much data was sent and received
Supports automatic handshake mode
Supports loop back testing
Supports remote wake up and power management control
Warranty, Returns, And Additional Information
  • Return Policies
    • Return for refund within: 45 days
    • Return for replacement within: 1 year
  • This item is covered by's 45/1 Return Policy.
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