Some cookies are essential to ensure our website works for you. You may block or delete all cookies from this site but parts of the site may not work. To find out more about how we use cookies, see our privacy statement.

OK

×

Are you in the United States?

Visit our U.S.A. & International site for relevant pricing, distribution and product availability information.

Go to StarTech.com

Browse Products...

1 Port FTDI USB to Serial RS232 Adapter Cable with COM Retention

Product ID: ICUSB2321F

Add an RS232 serial port with COM retention to your laptop or desktop computer through USB

Features
  • Integrated FTDI USB UART Chip

  • Baud Rate up to 115.2Kbps

  • COM Port assignments maintained across reboot

More Features . . .
  • 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

Prices may be lower from Resellers:

EBUY ISTUK AMAZUK RSUK BTDIR BTSUK PCWB SCANUK SOFUK PROUK BALLUK BCHUK BOXUK CCL NOVAUK
INGUK MCROP
Available in
£25.99 GBP exc VAT
£31.19 inc VAT

ID: ICUSB2321F

In stock:
United Kingdom: 969

Reseller Pricing: Create an Account

Volume Order? Request a quote

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.

The StarTech.com Advantage
  • The FTDI chipset is highly customizable and compatible, making it the ideal solution for any setup
  • Portable USB-Powered design requires no bulky power adapter or outlet
  • Simple installation and operation with COM port retention provides robust serial connectivity for legacy devices
Common Customer Questions

View FAQs...

Compatible With

View full 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 4.11.x LTS Versions only

Applications
  • Perfect for IT Administrators looking to add legacy functionality to newer notebooks, PCs and servers that lack an integrated RS232 port
  • Connect, monitor and control industrial/automotive sensors and 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
Product Numbers
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
Max Baud Rate 115.2 Kbps
MTBF 836981.2 hours
Parity None, Odd, Even, Mark, Space
Serial Protocol RS-232
Stop Bits 1, 2
Connector(s)
Connector Type(s) 1 - DB-9 (9 pin, D-Sub) Male
1 - USB Type-A (4 pin) USB 2.0 Male
Software
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 4.11.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 1.8 m [6 ft]
Color Black
Enclosure Type Plastic
Product Height 22 mm [0.9 in]
Product Length 45 mm [1.8 in]
Product Weight 200 g [7.1 oz]
Product Width 41.5 mm [1.6 in]
Packaging Information
Shipping (Package) Weight 0.2 kg [0.5 lb]
What's in the Box
Included in Package 1 - USB to RS-232 Serial Adapter
1 - Driver CD
1 - Instruction Manual
2 Port FTDI USB to Serial RS232 Adapter Cable with COM Retention
ICUSB2322F

2 Port FTDI USB to Serial RS232 Adapter Cable with COM Retention

Add two RS232 serial ports with COM retention to your laptop or desktop computer through USB

£54.99 exc VAT
£65.99 inc VAT

In stock:   540 Stock
USB to RS232 DB9 Serial Adapter Cable with COM Retention
ICUSB232PRO

1 ft USB to RS232 Serial DB9 Adapter Cable with COM Retention

Add an RS-232 serial port to your laptop or desktop computer through USB; features COM port retention

£24.99 exc VAT
£29.99 inc VAT

In stock:   1053 Stock
1 Port Professional USB to Serial Adapter Cable with COM Retention
ICUSB2321X

1 Port Professional USB to Serial Adapter Cable with COM Retention

Add one serial RS-232 port with com retention to any laptop or computer with a USB port

£34.99 exc VAT
£41.99 inc VAT

In stock:   629 Stock
2 Port USB to RS232 Serial DB9 Adapter Cable
ICUSB232C2

2 Port USB to RS232 Serial DB9 Adapter Cable

Add 2 serial RS-232 ports to any laptop or computer with a USB port

£41.99 exc VAT
£50.39 inc VAT

In stock:   786 Stock
2 Port Wall Mountable USB to Serial Adapter Hub with COM Retention
ICUSB2322X

2 Port Wall Mountable USB to Serial Adapter Hub with COM Retention

Add 2 serial RS-232 ports to any laptop or computer with a USB port

£54.99 exc VAT
£65.99 inc VAT

In stock:   228 Stock
4 Port USB to RS232 Serial DB9 Adapter Hub
ICUSB2324

4 Port USB to RS232 Serial DB9 Adapter Hub

Add four RS232 serial ports to any notebook or desktop computer using a single USB port

£88.99 exc VAT
£106.79 inc VAT

In stock:   57 Stock
4 Port Wall Mountable USB to Serial Adapter Hub with COM Retention
ICUSB2324X

4 Port Wall Mountable USB to Serial Adapter Hub with COM Retention

Add 4 serial RS-232 ports to any laptop or computer with a USB port

£103.99 exc VAT
£124.79 inc VAT

In stock:   91 Stock
8 Port USB to RS232 Serial DB9 Adapter Hub
ICUSB2328

8 Port USB to RS232 Serial DB9 Adapter Hub

Add eight RS232 serial ports to any notebook or desktop computer using a single USB port

£224.99 exc VAT
£269.99 inc VAT

In stock:   18 Stock
24in Internal USB Motherboard Header to Serial RS232 Adapter
ICUSB232INT1

24in Internal USB Motherboard Header to Serial RS232 Adapter

Add an RS232 serial port to any system with an available USB motherboard header

£28.99 exc VAT
£34.79 inc VAT

In stock:   578 Stock
24in Internal USB Motherboard Header to 2 Port Serial RS232 Adapter
ICUSB232INT2

24in Internal USB Motherboard Header to 2 Port Serial RS232 Adapter

Add two RS232 serial ports to any system with an available USB motherboard header

£58.99 exc VAT
£70.79 inc VAT

In stock:   32 Stock

USB 2.0 Cables (1)

16 ft USB 2.0 Active Extension Cable - M/F
USB2FAAEXT15

15 ft USB 2.0 Active Extension Cable - M/F

Reliably extend the distance of a USB 2.0 device an additional 15ft

£18.99 exc VAT
£22.79 inc VAT

In stock:   497 Stock

DB9 Cables & DB25 Cables (3)

10 ft Cross Wired DB9 to DB25 Serial Null Modem Cable - F/M
SCNM925FM

10 ft Cross Wired DB9 to DB25 Serial Null Modem Cable - F/M

Connect your serial devices, and transfer your files

£3.99 exc VAT
£4.79 inc VAT

In stock:   1644 Stock
10 ft DB9 RS232 Serial Null Modem Cable F/M
SCNM9FM

10 ft DB9 RS232 Serial Null Modem Cable F/M

Transfer files via serial connection

£3.99 exc VAT
£4.79 inc VAT

In stock:   1297 Stock
DB9 to DB25 Serial Cable Adapter - F/F
AT925FF

DB9 to DB25 Serial Cable Adapter - F/F

Convert a DB9 male port to a DB25 female port

£2.99 exc VAT
£3.59 inc VAT

In stock:   684 Stock

USB 2.0 Cards (1)

5 Port PCI High Speed USB 2.0 Adapter Card
PCI420USB

5 Port PCI High Speed USB 2.0 Adapter Card

Add 5 USB 2.0 ports to any desktop computer with a PCI slot

£14.99 exc VAT
£17.99 inc VAT

In stock:   1 Stock
Share your opinions about this product

Thanks for sharing your opinions about the ICUSB2321F. When writing your review, please focus on the performance and quality of this product. Your comments will help guide others. If possible, include examples of how you use the product, things you like or things you wish were different about it.

We're here to help

If you need support or you want to comment on parts of your purchase experience aside from the quality or performance of the product such as shipping or any technical/customer support issue, etc., we’d be happy to help you through Live Chat, our support form or by phone.

Reviews

Rating Snapshot

★   3
★   0
★   0
★   0
★   0

Average Customer Ratings

1-3 of 3 Reviews
Sort:  
Rating: 5 /5

Com Port Retention makes life easier

We have several of these deployed and the Com Port Retention makes life easier for our clients - and we've never had a failure. So we are quite happy with this product.

Quality of Product
Helpful? Yes · 0 No · 0 - Report Comment
Rating: 5 /5

Worked Flawlessly

I was unable to upgrade firmware and/or control my iOptron mount with the KeySpan Tripp-Lite USB to Serial cable. It was suggested by iOptron that I get the FIDI cable instead. A member of our Astronomy club recommended Startech.....and the rest is history. I would not hesitate using this company for additional needs.

Quality of Product (5/5)
Helpful? Yes · 3 No · 0 - Report Comment
Rating: 5 /5

Quality of Product (5/5)
Helpful? Yes · 0 No · 4 - Report Comment

* Product appearance and specifications are subject to change without notice.

x

Startech.com - 1 Port FTDI USB to Serial RS232 Adapter Cable with COM Retention

My Review

Overall Rating*
Click to rate
It was easy to find this StarTech.com product
YES
NO
My rating for the quality of this product
Click to rate

You may receive emails regarding this submission. Any emails will include the ability to opt-out of future communications.

* denotes a required field