Startech 1 Port FTDI USB to Serial RS232 Adapter Cable with Optical Isolation ICUSB2321FIS

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Startech's MPN:

ICUSB2321FIS

Add an RS232 serial port with circuit isolation to your laptop or desktop computer, through USB

USB to Straight-Through RS232 Serial Adapter
Integrated 2500Vrms Optical Isolation Circuits
500W Bi-Directional Surge Protection Circuits

The ICUSB2321FIS 1-Port FTDI USB to Serial RS232 Adapter Cable with Optical Isolation converts an available USB 1.1 or 2.0 port into an RS232 DB9 port that can be used to connect, monitor and control your serial devices.

The USB to serial adapter features integrated optical isolation circuits and surge protection to protect your critical, sensitive control equipment against electrical damage, making it a viable solution for costly industrial serial devices.

The versatile FTDI chipset also supports COM retention, additional customization/features, and compatibility not offered by most other solutions. Broad operating system compatibility 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.

The StarTech.com Advantage

Circuit isolation provides electrical protection for sensitive, and often expensive industrial equipment
Portable USB-Powered design requires no bulky power adapter or outlet
The FTDI chipset driver is highly customizable and broadly compatible, making it the ideal solution for any setup

Applications

Perfect for IT Administrators looking to add legacy functionality to newer laptops, desktop computers and servers that lack an integrated RS232 port
Connect, monitor and control industrial/automotive sensors and other sensitive equipment
Connect bar code scanners, receipt printers and other point-of-sale devices
Connect and program LED and Digital signage boards with serial communication ports
Connect a satellite receiver, serial modem, or PDU

Warranty Information
Warranty	2 Years
Hardware
Bus Type	USB 2.0
Chipset ID	FTDI - FT232RL
Interface	Serial
Port Style	Cable Adapters
Ports	1
Performance
Data Bits	7, 8
FIFO	256 Bytes
Isolation	2500 Vrms
Max Baud Rate	921.6 Kbps
Maximum Cable Length	8.3 ft [2.5 m]
Parity	None, Odd, Even, Mark, Space
Serial Protocol	RS-232
Stop Bits	1, 2
Supported Protocols	RS 232
Surge Protection	500W Bi-directional circuits
Connector(s)
Connector Type(s)	1 - DB-9 (9 pin, D-Sub) Male
	1 - USB Type-A (4 pin) USB 2.0 Male
Software
Microsoft WHQL Certified	Yes
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 Mac OS® 10.6 to 10.12 Linux 2.4.x to 4.4.x LTS Versions only
Special Notes / Requirements
System and Cable Requirements	One available USB 1.1 (or better) port
Power
Power Source	USB-Powered
Environmental
Humidity	5~95% RH
Operating Temperature	0°C to 55°C (32°F to 131°F)
Storage Temperature	-20°C to 85°C (-4°F to 185°F)
Physical Characteristics
Cable Length	8.3 ft [2.5 m]
Color	Black
Enclosure Type	Plastic
Product Height	0.8 in [20 mm]
Product Length	8.3 ft [2.5 m]
Product Weight	3 oz [86 g]
Product Width	1.6 in [40 mm]
Packaging Information
Shipping (Package) Weight	0.4 lb [0.2 kg]
What's in the Box
Included in Package	1 - USB to RS-232 Serial Adapter
	1 - Driver CD
	1 - Instruction Manual

1 Port FTDI USB to Serial RS232 Adapter Cable with Optical Isolation

Brand Name: StarTech.com

Cable Length: 1.83 m

Cable Type: Serial

Colour: Black

Connector on First End: 1 x DB-9 Male Serial

Connector on Second End: 1 x Type A Male USB

Product Type: Data Transfer Cable

Basic
Brand Name:	StarTech.com
Cable Length:	1.83 m
Cable Type:	Serial
Colour:	Black
Connector on First End:	1 x DB-9 Male Serial
Connector on Second End:	1 x Type A Male USB
Product Type:	Data Transfer Cable

General Information
Brand Name:	StarTech.com
Manufacturer Part Number:	ICUSB2321FIS
Manufacturer Website Address:	http://www.startech.com/au
Manufacturer:	StarTech.com
Product Name:	1 Port FTDI USB to Serial RS232 Adapter Cable with Isolation
Product Type:	Data Transfer Cable

Lock
Cable Length:	1.83 m

Miscellaneous
Certifications & Standards:	CE FCC WHQL
Device Supported:	Monitor
Green Compliance Certificate/Authority:	RoHS
Green Compliant:	Yes

Physical Characteristics
Colour:	Black
Material:	Plastic - Housing
Weight (Approximate):	150 g

Product Information
Cable Length:	1.83 m
Device Supported:	Monitor

Technical Information
Cable Configuration:	Straight-through
Cable Length:	1.83 m
Cable Type:	Serial
Conductor:	Copper
Connector on First End:	1 x DB-9 Male Serial
Connector on Second End:	1 x Type A Male USB
Device Supported:	Monitor

Warranty
Limited Warranty:	2 Year

Information

SKU/Item No 537756

Vendor Part No ICUSB2321FIS

UPC/EAN Number 065030845373

Our Stock ** (click for more info)

Price

$226.96

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Manufacturer's link	Startech
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** This is the stock level in our warehouse.
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Stock Information

	Our Qty in Stock	Availability and ETA
Our own stock	0	Usually 1-3 days (when supplier has stock)
	Supplier's Qty in Stock	Availability and ETA	Updated
Supplier one	0	TBA	11/09/25 09:10AM
Supplier two	7		11/09/25 09:11AM