StarTech.com 1 Port FTDI USB to Serial 232 Adapter Cable COM Retention

StarTech.com ICUSB2321F

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Manufacturer Part#  ICUSB2321F

UPC Code: 065030843485

Provantage Code:  STR925Q

Condition:  Factory New

  • Product Type: Data Transfer Adapter
  • Connector Type on First End: DB-9 RS-232 Serial - Male
  • Cable Length: 6 ft
  • Country of Origin: Taiwan
  • Product Material: Plastic
  • TAA Compliant: Yes

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StarTech.com ICUSB2321F Specifications

    1 Port FTDI USB to Serial 232 Adapter Cable COM Retention

At a Glance

    • Integrated FTDI USB UART Chip
    • Baud Rate up to 115.2Kbps
    • COM Port assignments maintained across reboot
    • Powered by the USB port - no external power adapter required
    • Single cable design for portability
    • Designed to make serial port expansion quick and easy
    • Compatible with Windows?, Mac OS and Linux
    • 6-foot cable length for connecting to devices without having to be too close
    • USB to Straight-Through RS232 Serial Adapter


    The ICUSB2321F 1-Port USB to Serial RS232 Adapter Cable with FTDI chipset and COM Retention converts an available USB 1.1 or 2.0 port into an RS232 serial DB9 port to connect, monitor and control your serial devices.

    This compact adapter features COM retention, allowing the same COM port value to automatically be re-assigned to the port if the cable is disconnected and re-connected to the host computer, or if the system is rebooted. The ICUSB2321F uses the FTDI chipset which supports additional customization, advanced features, and compatibility not necessarily offered by other solutions.

    Compatibility with a broad list of Operating Systems including Windows®, Windows CE, Mac OS and Linux, makes this product easy to integrate into mixed environments.

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

    More from the Manufacturer


    OS Compatibility:

    • Windows® CE (4.2, 5.0, 6.0), XP Embedded, 98SE, 2000, XP, Vista, 7, 8, 8.1, 10
    • Windows Server® 2003, 2008 R2, 2012, 2012 R2, 2016, 2019
    • Mac OS® 10.6 to 10.14
    • Linux 2.4.x to 4.11.x LTS Versions only

Package Contents

    • 1 Port FTDI USB to Serial RS232 Adapter Cable with COM Retention
    • 1 x Driver CD
    • 1 x Instruction Manual

Additional Product Images


Product Name1 Port FTDI USB to Serial 232 Adapter Cable COM Retention
Manufacturer Part NumberICUSB2321F
Product TypeData Transfer Adapter
Connector Type on First EndDB-9 RS-232 Serial - Male
Connector Type on Second EndUSB 2.0 Type A - Male
TAA CompliantYes
Product ColorBlack
Product MaterialPlastic
Environmental ComplianceRestriction of Hazardous Substances (RoHS)

Registration, Evaluation, Authorization and Restriction of Chemicals (REACH)

Waste Electrical and Electronic Equipment Directive (WEEE)

Packaged Quantity1
Environmentally FriendlyYes
Connector on First End Details1 x 9-pin DB-9 RS-232 Serial - Male
Connector on Second End Details1 x USB 2.0 Type A - Male
Country of OriginTaiwan
Limited Warranty2 Year
Operating System CompatibilityWindows CE 4.2

Windows CE 5.0

Windows CE 6.0

Windows XP Embedded

Windows 98 Second Edition

Windows 2000 Server

Windows XP

Windows Vista

Windows 7

Windows 8

Windows 8.1

Windows 10

Windows 11

Windows Server 2003

Windows Server 2008 R2

Windows Server 2012

Windows Server 2012 R2

Windows Server 2016

Windows Server 2019

Windows Server 2022

Mac OS X 10.6 Snow Leopard

macOS Catalina 10.15

macOS Big Sur 11.0

macOS Monterey 12.0

macOS Ventura 13.0

Linux Kernel 3.0.x+ LTS

Connector Gender on First EndMale
Connector Gender on Second EndMale
Certifications & StandardsFCC
Cable Length6 ft
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
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