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TRENDnet USB to Serial 9-Pin Converter Cable, Connect a RS-232 Serial Device to a USB 2.0 Port, Supports Windows & Mac, USB 1.1, USB 2.0, USB 3.0, 21 Inch Cable Length, Plug & Play, White, TU-S9

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3,054 ratings

| 227 answered questions

-20% $11.99

List Price: $14.99

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Purchase options and add-ons

Compatible Devices	Laptop, PC, Modem, Printer
Specific Uses For Product	personal
Connector Type	USB Type A
Connector Gender	Male-to-Male
Color	White

About this item

USB: The USB to serial adapter supports USB 1.1 and it is compatible with USB 2.0 and USB 3.0 ports.
RS-232 SERIAL CONNECTOR: Connect RS-232 serial devices, such as modems or printers, using the widely supported USB standard found in most laptops and desktops today.
SUPPORTED OPERATING SYSTEMS: The USB to serial converter adapter is compatible with Windows and Mac operating systems. Windows 10, 8.1, 8, 7. Mac OS 10.11, 10.10, 10.9, 10.8, 10.7, 10.6
FLEXIBLE CABLE: Integrated and flexible 540mm (21 in.) USB 2.0 cable accommodates most installation scenarios. Total cable length of 25 inches when including the RS-232 (9pin) and USB Type A.
EASY SETUP: Simple installation in seconds of the USB to Serial 9-Pin Converter Cable. Insert the your computer

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Customer Rating	(3054)	(115)	(939)	(679)	(942)	(775)
Price	$11.99	$27.99	$4.95	$7.97	$18.99	$19.99
Shipping	FREE Shipping on orders over $25.00 shipped by Amazon or get Fast, Free Shipping with Amazon Prime	FREE Shipping. Details	FREE Shipping on orders over $25.00 shipped by Amazon or get Fast, Free Shipping with Amazon Prime	FREE Shipping on orders over $25.00 shipped by Amazon or get Fast, Free Shipping with Amazon Prime	FREE Shipping on orders over $25.00 shipped by Amazon or get Fast, Free Shipping with Amazon Prime	FREE Shipping on orders over $25.00 shipped by Amazon or get Fast, Free Shipping with Amazon Prime
Sold By	Amazon.com	Amazon.com	Amazon.com	Amazon.com	Vtop Online Shop	Amazon.com
Are batteries required?	No	No	No	No	No	No
Color	White	Black	Gray	Black	RS232 to USB(Black)	Gray
Computer Memory Size	0 TB	0 TB	0 TB	0 TB	500 GB	0 TB
Item Dimensions	2.05 x 1.38 x 0.59 inches	8.27 x 1.5 x 0.57 inches	120 x 0.01 x 0.01 inches	78.7 x 1.3 x 0.6 inches	5.51 x 0.79 x 3.74 inches	16.9 x 1.4 x 0.8 inches

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From the manufacturer

USB 1.1, USB 2.0, USB 3.0, RS-232, Serial, TxD, RxD, RTS, DCD, RI, GND, converter, adapter

Overview


USB Supports USB 1.1 and compatible with USB 2.0 and USB 3.0 ports.	RS-232 Serial Connector Connect RS-232 serial devices such as modems and network switches using the widely supported USB standard found in most laptops and desktops today.	Flexible Cable Integrated flexible 540 mm (21 in.) USB cable accommodates most installation scenarios.

USB to serial adapter, USB to serial converter, USB 1.1, USB 2.0, 3.0 compatible, RS-232, DB-9


	TU-S9	TU-P1284	TU-S9E	TU-S4
Standards	1 xUSB Type A • 1 x RS-232 (9-pin) male	USB 1.1 Interface type A • IEEE 1284 centronics 36 male	• 1 x 10/100Mbps port • 1 x RS-232 (9-pin) male	• 4 x DB9 RS-232 male ports • 1 x USB 2.0 Type A port
Data Rate	Up to 6 Mbps	12 Mbps	• RS-232 port: Up to 921.6Kbps • Ethernet port: Up to 100Mbps	Up to 460Kbps
Supported OS	Windows 10, 8.1, 8, 7 • Mac OS 10.11, 10.10, 10.9, 10.8, 10.7, 10.6	Windows 10, 8.1, 8, 7, Vista, XP • Mac OS 10.6-10.9	Windows ( Utility)	Windows and Mac OS
Operating Temperature	0°C ~ 40°C (32°F ~ 104°F)	0°C ~ 40°C (32°F ~ 104°F)	0° – 40° C (32° – 104° F)	0° – 70° C (32° – 158° F)
Operating Humidity	Max. 85% non-condensing	Max. 85% (non-condensing)	Max. 95% non-condensing	Max. 85% non-condensing
Power Consumption	500 mA (max.)	500 mA (max)	1.1W (max)	0.6W (max)
Cable Length	540 mm (21 in)	2 m (6.6 ft.)	-	-
Weight	40 g (1.4 oz.)	105 g (3.7 oz.)	• 102g (3.6 oz.)	• 413g (14.5 oz.)

Product information

Technical Details

Collapse all

Summary

Standing screen display size

‎19 Inches

Other Technical Details

Brand

‎TRENDnet

Series

‎TU-S9

Item model number

‎TU-S9

Operating System

‎OPERATING SYSTEMS: The USB to serial converter adapter is compatible with Windows and Mac operating systems. Windows 10, 8.1, 8, 7. Mac OS 10.11, 10.10, 10.9, 10.8, 10.7, 10.6

Item Weight

‎1.41 ounces

Product Dimensions

‎2.05 x 1.38 x 0.59 inches

Item Dimensions LxWxH

‎2.05 x 1.38 x 0.59 inches

Color

‎White

Number of Processors

‎1

Voltage

‎240

Manufacturer

‎TRENDnet

Language

‎English

ASIN

‎B0007T27H8

Country of Origin

‎China

Is Discontinued By Manufacturer

‎No

Date First Available

‎February 14, 2005

Additional Information

Customer Reviews

3,054 ratings

4.6 out of 5 stars

Best Sellers Rank

#7 in Serial Cables

Warranty & Support

Amazon.com Return Policy:Amazon.com.tr Voluntary 30-Day Return Guarantee: You can return many items you have purchased within 30 days following delivery of the item to you. Our Voluntary 30-Day Return Guarantee does not affect your legal right of withdrawal in any way. You can find out more about the exceptions and conditions here.

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What's in the box

TU-S9

Quick Installation Guide

CD-ROM (Driver and User’s Guide)

Product guides and documents

Installation Manual (PDF)

Product Documentation (PDF)

Specification Sheet (PDF)

User Guide (PDF)

Customer reviews

4.6 out of 5

3,054 global ratings

5 star		77%
4 star		11%
3 star		7%
2 star		2%
1 star		3%

How customer reviews and ratings work

Reviewed in the United States 🇺🇸 on April 27, 2023

Style: Serial AdapterVerified Purchase

Works great

Helpful

G. Linn

Works Fine and a Problem Solver

Reviewed in the United States 🇺🇸 on May 19, 2012

Style: Serial AdapterVerified Purchase

I'm trying to get a 20 year old microcomputer back up again. It requires a serial terminal interface which I no longer have (because I stupidly gave away the VT100 type terminal I used to communicate with it). Rather than buy one that would be expensive and of little future use, I started looking for a more modern solution. Having been working in electronics for many years, I have learned that one can get lucky and everything works okay the first time. Failing that, troubleshooting digital hardware can be difficult and time consuming. As a learning experience with new hardware and to simplify getting the basic RS-232 communication link back up, I purchased an Arduino processor board and an RS-232 "shield" to go with it. The shield simply converts the digital levels from the Arduino to RS-232 levels. These Arduino products are great, very flexible, and relatively cheap. Programming software is free and the language used is more or less "C". Plenty of programming examples are in existence. So, I was able to get the Arduino's RS-232 output going (looping output data) which I first looked at with a scope. Next, I brought up an old tower PC running XP. I started using this computer because it had a DB-9 RS-232 port and a terminal program known as "Hyperterminal". After XP, Hyperterminal has to be purchased separately. Hooking up to the PC and Hyperterminal worked just fine. Next, I wanted to get rid of the tower PC and run things from a small ACER netbook portable. This is where the Trendnet product comes in since the ACER doesn't have a DB-9 port. I was hoping the driver for this device would install automatically but it didn't so I had to use the supplied CD. Since the ACER didn't have an internal CD drive, I hooked up and external one through a USB port and loaded the driver without incident. If you don't have an external drive, I imagine you could use another computer to load and then send the file over your LAN. The next stumbling block was that Hyperterminal was NOT installed on my ACER. Rather than try to figure out why, I looked on line and found another (free) terminal program called RealTerm. Hooking the Trendnet to the Arduino DB-9 and an ACER USB port worked fine. The only thing I noticed, which could be a problem for some, was that no "thumbscrews" were provided on the Trendnet DB-9 end. This end stays mated okay with the DB-9 end on the Arduino, but I don't particularly like to leave DB connectors unsecurred to each other. One could use a short jumper cable, but who needs extra work and cost. Over the years, I have purchased several other Trendnet products and found that they generally did what was advertised and were of good quality for the price.

One person found this helpful

Helpful

Sandra Cruz

Funcional

Reviewed in the United States 🇺🇸 on December 8, 2022

Style: Serial AdapterVerified Purchase

Permite realizar los trabajo de configuracion de forma eficaz y segura para los dispositivos a traves de conexion serial.

One person found this helpful

Helpful

Translate review to English

Maxym S.

Works perfectly

Reviewed in the United States 🇺🇸 on December 9, 2022

Style: Serial AdapterVerified Purchase

This adapter worked with my APC Smart-UPS RS-232 cable. Extremely delighted. Excellent value for money.

Helpful

Mark A.

Flawless Function

Reviewed in the United States 🇺🇸 on June 1, 2022

Style: Serial AdapterVerified Purchase

I use these adapter cables to connect to older machine controls, and they work right out of the box. I've had trouble with other USB/Serial adapter cables, but not this one. You don't have to manually install software, just plug-n-go. Windows will recognize the cable and install any necessary driver. You may have to go into the windows device driver control panel to discover which serial port it is attached as, and you can also use that control panel to set the communication parameters if necessary.

Helpful

Justin Phillips

Worked as advertised.

Reviewed in the United States 🇺🇸 on September 9, 2022

Style: Serial AdapterVerified Purchase

Worked great for my needs, had to install the suggested driver from Microsoft to support the RS232 serial port. Once the driver was installed it communicated well between my wideband o2 sensor (WB02) via db9 breakout connector to my computer. The data transfer is flawless.

Helpful

SailSleuth

Works great BUT designed to connect to male securing screws.

Reviewed in the United States 🇺🇸 on December 16, 2016

Style: Serial AdapterVerified Purchase

Before you buy, BE AWARE that this adapter has two female nuts next to the plug for securing the serial port to the adapter. I was connecting this to a Bosch CDR tool which has a serial interface. This tool also has two female nuts next to the serial plug. Since neither one is male, they could not connect. The nuts would not even let the adapter plug touch the serial port on my device. I thought I could simply unscrew the nuts on the adapter but they are permanently attached. In order to remove the adapter nuts I had to pry open the plastic casing around the serial end and use a Dremmel tool to cut away the backing of the female nuts on the other side of the mounting plate. This is a delicate process and it would be easy to break the soldered connections by the strain relief if you are not careful.
Once these were removed, I installed the windows seven drivers from the CD and the adapter worked perfectly. The CDR Tool immediately recognized the adapter as COM3.
If the device you are connecting to has male threaded screws for securing it to a serial cable, this device will work perfectly out-of-the-box. if your device has female nuts intended to be connected to mail threads, prepare to do a little extra work before you can use it.

13 people found this helpful

Helpful

MixMaster Jack

Does what it needs to do with simplicity

Reviewed in the United States 🇺🇸 on July 27, 2015

Style: Serial AdapterVerified Purchase

One of my few 5 star reviews, but definitely worth it. I needed to connect a VERY old Windows XP laptop to a piece of audio gear that seemed to be failing, and the only access was via an old DB9 com port using the vendor's no-longer-supported software. This cable comes with a driver CD and a simple set of instructions: 1) insert the CD, 2) click on "Install Driver", and 3) plug in the cable. The driver installation was very fast and completed without any problems. The old (and slow) Windows XP laptop immediately recognized the device and loaded the drivers when I plugged in the cable, giving me the "hardware ready to use" message in about a minute. It installed the connection as COM6, so I just needed to swap that with COM1 (which the audio-gear software needed to see) and the software connected with the device and I was able to restore operations. The DB9 end is male, so if you need something longer than 2 ft, a standard DB9 male to female cable connects securely, since this cable has the connection nuts on the DB9 connector which the standard cable can screw into to hold them together. For less than $10 US, this was a bargain and helped me save a church several thousand dollars since they didn't have to replace the hardware. The worst thing about the product was the molded plastic packaging that you have to cut to get to the product.

Helpful

Top reviews from other countries

A Human

and you're good to go

Reviewed in the United Kingdom 🇬🇧 on November 1, 2015

Style: Serial AdapterVerified Purchase

Purchased as need to configure Cisco Network devices.
Confirmed working on Windows 7 - 64 bit and Ubuntu 14.04 LTS 64-bit.
For windows simply install the driver from the supplied Driver CD, check which COM number is allocated.

For Ubuntu you may need to do a bit of googling to find out how to setup the usb to serial. Once you find the right guides, you will see it only takes 5 mins to setup, and you're good to go. Note, I needed to use minicom software to connect to devices, you just have to supply the correct settings i.e. ttyUSB0... for it to work. The important thing is this this cable contains a chip made by Prolific Technology, which Ubuntu does officially support.
I have also purchased much much cheaper cables as spares from eb*y, but they only seam to work in Windows, and the quality of the cable is not as good. My advice is buy a better quality cable, it may seam more expensive, but the benefit is they are likely to be compatible with most OS's. Highly recommended.

Ghost

Works like a charm!

Reviewed in the United Kingdom 🇬🇧 on February 1, 2015

Style: Serial AdapterVerified Purchase

I purchased this cable to be used as an adapter to connect to my Cisco router I use for lab work via a RJ45-to-DB9 cable since there was no port on my Dell laptop to connect to.So far so good, cable seem's to be of good quality and works like a charm!

David Roche

good USB to Serial cable

Reviewed in the United Kingdom 🇬🇧 on December 19, 2018

Style: Serial AdapterVerified Purchase

Have been using this Serial to USB device for a good few years now and has served me well . I think i recall once or twice having issues with the drivers over the 4 or 5 years but it was easily solved by going to the TRENDnet website and updating the drivers. no complaints and a solid product.

G Cot

Worked first time

Reviewed in the United Kingdom 🇬🇧 on April 26, 2014

Style: Serial AdapterVerified Purchase

Needed to connect a Windows 8 machine to an old Garmin GPS. The driver installed no problem and the gps lead connected and was seen by the computer. smiles all round.

Cambridge Kev

Excellent Product

Reviewed in the United Kingdom 🇬🇧 on February 3, 2016

Style: Serial AdapterVerified Purchase

Needed to connect a Meade ETX125 to a laptop with no Serial port only a USB. Plugged it in downloaded dll and it worked first time

One person found this helpful

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TRENDnet USB to Serial 9-Pin Converter Cable, Connect a RS-232 Serial Device to a USB 2.0 Port, Supports Windows & Mac, USB 1.1, USB 2.0, USB 3.0, 21 Inch Cable Length, Plug & Play, White, TU-S9

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From the manufacturer

Overview

USB

RS-232 Serial Connector

Flexible Cable

Product information

Technical Details

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TRENDnet USB to Serial 9-Pin Converter Cable, Connect a RS-232 Serial Device to a USB 2.0 Port, Supports Windows & Mac, USB 1.1, USB 2.0, USB 3.0, 21 Inch Cable Length, Plug & Play, White, TU-S9

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About this item

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Frequently bought together

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Legal Disclaimer

Special offers and product promotions

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Videos for related products

SABRENT USB 2.0 to Serial (9-Pin) DB-9 RS-232 Converter Cable, 6-Feet

Videos for related products

Tripp Lite USA-19HS

From the manufacturer

Overview

USB

RS-232 Serial Connector

Flexible Cable

Product information

Technical Details

Additional Information

Warranty & Support

Feedback

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