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StarTech.com USB to Serial RS232 Adapter - DB9 Serial DCE Adapter Cable with FTDI – Null Modem -...Startech

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StarTech.com USB to Serial RS232 Adapter - DB9 Serial DCE Adapter Cable with FTDI – Null Modem - USB 1.1 / 2.0 – Bus-Powered (ICUSB232FTN)

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Purchase options and add-ons

Compatible Devices	PDU, Satellite Receiver, Monitor, Tablet PC, Notebook, Bar Code Reader, Modem, Barcode Scanner, PDA, Printer See more
Specific Uses For Product	personal
Connector Type	Serial/USB
Color	Black
Item dimensions L x W x H	70.9 x 1.2 x 0.6 inches

About this item

MAXIMIZED PORTABILITY: This USB to serial RS232 adapter with FTDI features a single cable design removing the need for additional adapters and cables
CORRECT DTE/DCE CONFLICTS: Convert your available USB port into a null modem RS232 DB9 serial port, resolving any DTE/DCE conflicts
BROAD COMPATIBILITY: Compatible with your USB 1.0 or 2.0 ports, this RS232 converter works with your Windows, Mac or Linux systems
FAST TRANSFER SPEEDS: Experience fast speeds with this serial adapter, supporting a Baud Rate up to 921.6Kbps

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Top Brand: StarTech.com

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From the manufacturer

Add a Null Modem RS232 serial port to your laptop or desktop computer through USB


Corrects DTE/DCE Conflicts Without Additional Cables/Adapters The USB to Null Modem Serial Adapter Cable (1-Port) converts an available USB 1.1 or 2.0 port into an RS232 Null Modem serial DB9 port, solving DCE/DTE conflicts directly, without requiring additional cross-wired serial cables or adapters.	COM Retention and Integrated FTDI Chipset 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 integrated FTDI chipset supports additional customization, advanced features, and compatibility not necessarily offered by other solutions.	An Ideal Solution For Any Setup The USB to Null Modem adapter is compatible with a broad list of operating systems including Windows, Windows CE, Mac OS and Linux, making it easier to integrate into mixed environments.

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	This Item StarTech.com USB to Serial RS232 Adapter - DB9 Serial DCE Adapter Cable with FTDI – Null Modem - USB 1.1 / 2.0 – Bus-Powered (ICUSB232FTN)	Recommendations OIKWAN USB to RS232 Adapter with FTDI Chipset, 6.6ft USB 2.0 Male to RS232 Female DB9 Serial Converter Cable for Cashier Register, Modem, Scanner, Digital Cameras, CNC,Black	dummy StarTech.com 1 ft. USB to RS232 Serial DB9 Adapter Cable with COM Port Retention - Up to 920 kpbs USB A to DB9 Serial Adapter (ICUSB232PRO)	dummy Arnorin DB9 Null Modem Adapter Male to Male Slimline Data Transfer Serial Port Adapter 2 Pack	dummy StarTech.com DB-9 (M) to DB-9 (F) Serial Adapter	dummy BENFEI USB to Serial Adapter, USB to RS-232 Male (9-pin) DB9 Serial Cable, Prolific Chipset, Windows 11/10/8.1/8/7, Mac OS X 10.6 and Above, 1.8M（Not VGA）
	Try again! Details Added to Cart spCSRF_Treatment	Try again! Details Added to Cart spCSRF_Treatment	Try again! Details Added to Cart spCSRF_Treatment	Try again! Details Added to Cart spCSRF_Treatment	Try again! Details Added to Cart spCSRF_Treatment	Try again! Details Added to Cart spCSRF_Treatment
Price	$32.46	$12.99	-32% $19.80 List: $28.99	$8.29	$8.59	$9.99
Delivery	Get it as soon as Thursday, Aug 22	Get it as soon as Thursday, Aug 22	Get it as soon as Thursday, Aug 22	Get it as soon as Thursday, Aug 22	Get it as soon as Thursday, Aug 22	Get it as soon as Thursday, Aug 22
Customer Ratings	4.7868	4.385	4.71,271	4.7251	4.574	4.37,431
Tech Support	5.0	4.0	4.3	—	—	3.8
Easy to install	4.9	4.2	4.5	—	—	4.2
Quality of material	4.7	4.7	4.8	—	—	4.5
Value for money	4.5	—	4.4	—	—	4.4
Sold By	Amazon.com	Oikwan	4Aces Traders	ArnorinDirect	Amazon.com	BenfeiDirect
connector type	Serial/USB	USB 2.0	Serial/USB	—	Serial Adapter	DB9
number of ports	1	1	1	1	1	0
current rating	256 amps	1 amps	1 amps	—	1 amps	1 amps
warranty	Lifetime	Limited	—	—	Lifetime	Limited

Product information

Technical Details

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Other Technical Details

Brand

‎StarTech.com

Series

‎1 Port USB to Null Modem RS232 DB9 Serial DCE Adapter Cable with FTDI

Item model number

‎ICUSB232FTN

Operating System

‎Windows 8 Linux Windows Server 2012 Windows 7 Windows 10 Mac OS X El Capitan (10.11) macOS Sierra (10.12) Windows Server 2016 macOS High Sierra (10.13) macOS Mojave (10.14) Windows Server 2019

Item Weight

‎3.17 ounces

Product Dimensions

‎70.9 x 1.2 x 0.6 inches

Item Dimensions LxWxH

‎70.9 x 1.2 x 0.6 inches

Color

‎Black

Manufacturer

‎StarTech.com

Language

‎English

ASIN

‎B008634VJY

Country of Origin

‎China

Is Discontinued By Manufacturer

‎No

Date First Available

‎May 27, 2012

Additional Information

Customer Reviews

4.7 868 ratings

4.7 out of 5 stars

Best Sellers Rank

#20 in Serial Adapters

Warranty & Support

Amazon.com Return Policy:You may return any new computer purchased from Amazon.com that is "dead on arrival," arrives in damaged condition, or is still in unopened boxes, for a full refund within 30 days of purchase. Amazon.com reserves the right to test "dead on arrival" returns and impose a customer fee equal to 15 percent of the product sales price if the customer misrepresents the condition of the product. Any returned computer that is damaged through customer misuse, is missing parts, or is in unsellable condition due to customer tampering will result in the customer being charged a higher restocking fee based on the condition of the product. Amazon.com will not accept returns of any desktop or notebook computer more than 30 days after you receive the shipment. New, used, and refurbished products purchased from Marketplace vendors are subject to the returns policy of the individual vendor.

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Product Description

USB to Null Modem (Cross-Wired) RS232 Serial Adapter Baud Rate up to 921.6Kbps Integrated FTDI USB UART Chip COM Port assignments maintained across reboot USB-powered - no external power adapter required Compatible with USB 1.1 or 2.0 Ports Compatible with Windows®, Mac OS and Linux Single cable design for portability The ICUSB232FTN FTDI USB to Null Modem Serial Adapter Cable (1-Port) converts an available USB 1.1 or 2.0 port into an RS232 Null Modem serial DB9 port, solving DCE/DTE conflicts directly, without requiring additional cross-wired serial cables or adapters. 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 integrated FTDI chipset supports additional customization, advanced features, and compatibility not necessarily offered by other solutions. The USB to Null Modem adapter is compatible with a broad list of operating systems including Windows®, Windows CE, Mac OS and Linux, making it easier to integrate into mixed environments. Backed by a StarTech.com 2-year warranty and free lifetime technical support. 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 USB to Null Modem serial adapter corrects DTE/DCE conflicts without requiring additional adapters or cables The FTDI chipset is highly customizable and broadly compatible, making it the ideal solution for any setup Portable USB-Powered design requires no bulky power adapter or outlet Specifications Warranty Information Warranty 2 Years Connector(s) 1 - Connector Type(s) USB Type-A (4 pin) USB 2.0 DB-9 (9 pin, D-Sub) Environmental Operating Temperature 0°C to 55°C (32°F to 131°F) Storage Temperature -20°C to 85°C (-4°F to 185°F) Humidity 5~95% RH Hardware Ports 1 Interface Serial Bus Type USB 2.0 Port Style Cable Adapters Chipset ID FTDI - FT232RL Packaging Information Package Height 1,5 in [39 mm] Package Length 5,7 in [14,6 cm] Shipping (Package) Weight 7,2 oz [205 g] Package Width 8,2 in [20,8 cm] Performance Serial Protocol RS-232 Max Baud Rate 921.6 Kbps Data Bits 7, 8 FIFO 256 Bytes Parity None, Odd, Even, Mark, Space Stop Bits 1, 2 MTBF 541,728 hours Physical Characteristics Weight of Product 3,2 oz [90 g] Color Black Material Plastic Cable Length 5,6 ft [1,7 m] Product Length 5,9 ft [1,8 m] Product Width 1,2 in [30 mm] Product Height 0,6 in [1,5 cm] Power Power Source USB-Powered Software OS Compatibility Windows® CE (4.2, 5.0, 6.0), XP Embedded, 98SE, 2000, XP, Vista, 7, 8, 8.1, 10, 11 Windows Server® 2003, 2008 R2, 2012, 2012 R2, 2016, 2019 macOS 10.6 to 10.15, 11.0, 12.0 Linux Kernel 3.0.x - 5.4.x (LTS Versions Only) Special Notes / Requirements System and Cable Requirements One available USB 1.1 (or better) port What's in the Box 1 - Included in Package USB to RS-232 Null Modem Adapter Driver CD Instruction Manual

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Customer reviews

868 global ratings

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Customers say

Customers like the value, quality and ease of use of the electronic adapter. For example, they mention it's well worth the money, a great cable and that it works well for serial communication needs.

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Performance Quality Ease of use Cable Value Connectivity

96 customers mention "Performance"88 positive8 negative

Customers are satisfied with the performance of the adapter. They mention that it works great when they need to get into serial devices, works flawlessly in Windows 10, and is a lifesaver. It works well to connect to the serial console on their PC Engines APU2 router. It also works with all kinds of archaic equipment and does the job for both logging alerts to their computer. Overall, most are pleased with the FTDI chipset that this uses.

"Completely painless to get working under Linux, and works just as expected, operating at standard RS-232 levels (±5V; it is not a TTL serial port)...." Read more

"Great because it uses FTDI chipset which is very important. Prolific chipsets are not as reliable...." Read more

"Works well to connect to the serial console on my PC Engines APU2 router...." Read more

"One of the nicest null modem cables I've used. Works flawlessly in Windows 10 off a USB 3 port...." Read more

23 customers mention "Quality"23 positive0 negative

Customers are satisfied with the quality of the adapter. They mention that it is a high-quality cable, and feels like premium materials. The activity lights are a nice touch, and are helpful in verifying operation. Some appreciate the send/recv lights, status LEDs, and read/write activity lights that blink.

"...serial ports, but this is kind of better, since it gives you visual activity indicators and has a higher maximum speed...." Read more

"...They are very convenient for serial consoles and the like. The blinking LEDs are fun but not needed...." Read more

"...It worked! Good quality cable and I would recommend it to anyone who needs this type of cable." Read more

"...rock solid FTDI FT232R chip which in my experience is by far the most reliable in terms of the chip itself and drivers for modern Windows(Vista+)..." Read more

14 customers mention "Ease of use"14 positive0 negative

Customers find the adapter easy to use. They say it's simple to configure, works well, and connects with ease. Some say it installs seamlessly on their HP laptop and works as advertised. They also appreciate the convenient combination of a null modem and USB-to-DB9 adapter in one.

"Completely painless to get working under Linux, and works just as expected, operating at standard RS-232 levels (±5V; it is not a TTL serial port)...." Read more

"...No drivers were needed in Windows 10, it was plug and play. It does come with a driver disk if you need it for older OSes...." Read more

"...It’s entirely plug and play as well...." Read more

"...that cable will always have that port, making it easier to set up your configs since you will know what port it is without having to open device..." Read more

12 customers mention "Cable"9 positive3 negative

Customers like the cable. They mention it's a great cable, adapter, null modem cable, RJ45 -> serial cable, and console patch cord. They also say it works well, doesn't need drivers, and is a good cable for prototyping.

"One of the nicest null modem cables I've used. Works flawlessly in Windows 10 off a USB 3 port...." Read more

"This is a great cable for prototyping if your board doesn't support a TTL connection...." Read more

"...After some troubleshooting, I realized this was a null modem cable instead of straight through...." Read more

"...The RJ45 -> serial cables are nice because they don't need drivers, but they use up your NIC port, so if you're working in a datacenter that doesn't..." Read more

8 customers mention "Value"8 positive0 negative

Customers are satisfied with the value of the adapter. They mention that it works as advertised, is reasonably priced, and is a wonderful product.

"...The Tx/Rx LEDs on the serial end are a very nice touch. Well worth the money." Read more

"Works well great value for the money." Read more

"...Well worth the money." Read more

"Very simple and worth." Read more

7 customers mention "Connectivity"7 positive0 negative

Customers like the connectivity of the adapter. They mention it's great for connecting to Crestron equipment, soft and flexible, which is great for temporarily connecting a laptop at the USB end. It works perfectly to connect to the console port of their server. It's an excellent solution for legacy connections, perfect for LIS transmission troubleshooting, and easily connects a modern laptop with USB to the serial console of any server.

"The cable is particularly soft and flexible, which is great for temporarily connecting a laptop at the USB end...." Read more

"...driver installed automatically (silently, even), and the cable worked perfectly to connect to the console port of my Negate firewall appliance." Read more

"Excellent solution for legacy connections. I've had many problems with USB-to-Serial adapters, but this one is super reliable...." Read more

"...Easily connect a modern laptop with USB to the serial console of any server. Works under Linux (/dev/ttyUSB)...." Read more

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Amazon Customer

Highly recommended

Reviewed in the United States on April 6, 2023

Verified Purchase

Completely painless to get working under Linux, and works just as expected, operating at standard RS-232 levels (±5V; it is not a TTL serial port). The TX/RX activity LEDs are a great feature, and it supports up to 3000000 baud (3 Mbaud). I have a laptop with integrated serial ports, but this is kind of better, since it gives you visual activity indicators and has a higher maximum speed. If you need to work with older equipment that uses RS-232, this is a great option.

2 people found this helpful

Helpful

A. L. Chapman

Great all-in-one serial adaptor

Reviewed in the United States on July 3, 2019

Verified Purchase

Great because it uses FTDI chipset which is very important. Prolific chipsets are not as reliable. Plugged it in my Win10 PC and let Windows deal with it. Said it installed OK but I had to do a driver update in Control Panel Device Manager. I pointed it to the included driver disk's Win10 FTDI folder and it worked great. Next best thing is it has a built in null modem and the correct female DB9 connector so no having to use separate null modem or gender changer. The final plus are the LEDs. The green LED (transmitting to USB end of cable) blinks to let you know data is uploading from the device while an orange one blinks to indicate serial traffic coming to the device on the RS-232 DB9 end. This eliminates another bulky serial port tester and allows for instant visual feedback of serial port activity. Finally, the DB9 has twin thumb screws to secure it to the device to ensure it doesn't come off even if the device is handled. I personally use this to manage my vintage HP 48SX calculator inside an environmental case that has a RS-232 male connector on the outside.

4 people found this helpful

Helpful

Phillip Griffith

serial console for the PC Engines APU2 router

Reviewed in the United States on April 25, 2023

Verified Purchase

Works well to connect to the serial console on my PC Engines APU2 router. Linux detected it as /dev/ttyUSB0 without resorting to the driver CD that StarTech ships in the box. sudo grep -i tty syslog. Teklager has a very good description of how to make this connection from Linux using PuTTY.

Helpful

Steven

Good reliable UBS to null modem cable

Reviewed in the United States on July 29, 2018

Verified Purchase

One of the nicest null modem cables I've used. Works flawlessly in Windows 10 off a USB 3 port. I love how it has lights on it so I can confirm rcx and trx signals. I've used this successful to log into a number of network appliance consoles. No drivers were needed in Windows 10, it was plug and play. It does come with a driver disk if you need it for older OSes.

Due not that the DB9 side stick out a little bit further than normal because it has the electronics in it for the USB to Serial conversion, keep that in mind if you have to work in a tight space.

2 people found this helpful

Helpful

Ed Schaller

Works well (linux/mac) but we can't trust FTDI any more.

Reviewed in the United States on January 31, 2015

Verified Purchase

I have been very happy with these. I have used them under both linux and macos. They are very convenient for serial consoles and the like. The blinking LEDs are fun but not needed.

I, in general, have been very pleased with the FTDI chipset that this uses. Recent action by FTDI has demonstrated though that they have a willingness to purposely destroy people equipment in their attempts to stop counterfeiting of their products. They pushed out a driver for windows that purposely rendered counterfeit FTDI chips. The wikipedia page on FTDI has details and links.

I have no reason to suspect that startech doesn't use genuine FTDI chips. It is next to imposable though for me as an end user and without destroying such a product to know if a product using a FTDI driver won't suddenly stop working when it gets plugged into a windows box. With my luck this will happen at the worst time and when I don't have an extra, non-FTDI USB to serial adapter with me.

The net result is that if something claims a FTDI you can't trust it to work when you need it. I was beginning to prefer FTDI's chips and products based on them. Now I cannot trust them.

One person found this helpful

Helpful

Eli Lilly

Installs fine on Windows 10

Reviewed in the United States on January 1, 2024

Verified Purchase

On Windows 10 I just plugged it into the computer, which recognized the chip set and installed the driver. Then plugged the DB9 into my device, looked in the device manager to see what port was assigned, and set my device software accordingly. Five minutes max

Helpful

Worked like a charm!

Reviewed in the United States on February 15, 2022

Verified Purchase

The CD that came with the cable has nearly every FTDI USB-to-whatever driver known to man included on it. I never once had to connect my PC to the internet to download a driver, just plugged this in and installed the included driver from the CD and had a serial console to my device instantly. The Tx/Rx LEDs on the serial end are a very nice touch. Well worth the money.

Helpful

works great

Reviewed in the United States on August 1, 2013

Verified Purchase

I really needed a straight through cable, but all the ones I had tried were incompatible with my application, even others that claimed they had the FTDI chipset I required. I lucked out because it was actually an accident (didn't notice the Null Modem part) that I bought this cable. My device recognized the cable right away (which was further than I had gotten with any of the others), but would still not work. After some troubleshooting, I realized this was a null modem cable instead of straight through. No sweat; I ordered one of these bad boys ( DB9 Male / DB9 Female Null Modem Mini Adapter ) to cancel out the null modem & flop it back to straight through and BAM! It worked! Good quality cable and I would recommend it to anyone who needs this type of cable.

One person found this helpful

Helpful

Top reviews from other countries

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Federico Giarrusso

Ottimo! Programmazione antifurto Bentel

Reviewed in Italy on July 3, 2024

Verified Purchase

Ho dovuto acquistare questo cavo per la programmazione di alcune schede per antifurto Bentel Security. Funziona molto bene, veloce la trasmissione dei dati.
Inoltre, cosa importante, è compatibile con Windows 11.

Translate review to English

Kennedy

Quality product, works well when properly configured

Reviewed in Canada on July 22, 2021

Verified Purchase

Make sure to read your devices manual or call support to find out exactly what type of serial connection is needed to connect. There's many standards and you'll need the right cable with the correct chip and correct header to make your connection work. So investigate before you purchase. My serial cable works well and is made with quality materials and communication chip.

2 people found this helpful

Sascha

Works fine

Reviewed in the United Kingdom on February 21, 2024

Verified Purchase

Bought to check if my old ugreen adapter was the cause of my problem... it wasn't, but when i solved the issue i had this adapter worked perfectly with it.

Anthony R.

Nickel

Reviewed in France on January 12, 2024

Verified Purchase

Un peu cher pour ce que c'est mais comme dhab avec startech très bonne qualité

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Ingo M.

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Reviewed in Germany on August 28, 2023

Verified Purchase

Dieses Kabel ist wirklich klasse und kann mit den teuren von zB WuT locker mithalten. Einstecken geht. Keine Treiber weder unter Windows noch unter Linux.
Ich brauche das Kabel beruflich jeden Tag zur Konfiguration von Switches und Routern.
Sehr zu empfehlen. Auch der Preis ist eigentlich ok ein vergleichbares von WuT kostet so um die 60 Euro.

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StarTech.com USB to Serial RS232 Adapter - DB9 Serial DCE Adapter Cable with FTDI – Null Modem - USB 1.1 / 2.0 – Bus-Powered (ICUSB232FTN)

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Add a Null Modem RS232 serial port to your laptop or desktop computer through USB

Corrects DTE/DCE Conflicts Without Additional Cables/Adapters

COM Retention and Integrated FTDI Chipset

An Ideal Solution For Any Setup

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