Price: $11.99
(as of Dec 09, 2024 09:32:15 UTC - Details)

This USB to Serial converter allows you to connect an RS-232 serial device such as a modem to a USB port on your desktop or laptop.
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.
PACKAGE CONTENTS
• TU-S9
• Quick Installation Guide
• CD-ROM (Drivers)
USB: The USB to serial adapter supports USB 1.1 and it is compatible with USB 2.0 and USB 3.0 ports.
NDAA COMPLIANT: With our NDAA compliant USB to Serial 9-Pin Converter Cable, you can plan and install networking solutions that Government customers demand today (U.S. and Canada Only)
MANUFACTURER PROTECTION: We stand by the quality of our products.The TU-S9 USB to Serial 9-Pin Converter Cable is backed and supported with 2 years of TRENDnet Manufacturer Protection.
RELIABLE TECH SUPPORT: Our team of advisors, support and tech experts are English speaking, and available for all your needs during normal business hours. We take pride in being there for our customers.
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
Reviewer: G. Linn
Rating: 5.0 out of 5 stars
Title: Works Fine and a Problem Solver
Review: 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.

Reviewer: Fred
Rating: 5.0 out of 5 stars
Title: Great quality. Works with Windows 10/11
Review: My USB to serial adapter was not working with Windows 11 so I selected this as its replacement.The adapter works as expected. Installation was easy as the drivers are part of Windows 11.No issues so far.I recommend this product to people looking for a USB to Serial adapter.

Reviewer: Inigo Montoya
Rating: 5.0 out of 5 stars
Title: Win10 detected automatically with no additional drivers necessary
Review: Works perfect for console connection to Cisco switches and routers.

Reviewer: Perry The Cynic
Rating: 4.0 out of 5 stars
Title: Device okay, support not so much (Macintosh)
Review: This is for use on Macintosh; I haven't tried to use this on Windows PCs or other types of systems.Pros: Cheap, works fine when it works.Cons: Unhelpful support if it doesn't work, somewhat questionable future-proofing.Summary: Cheap enough to buy and throw out if it stops working.As of today, this works fine on most Macs but not on some: any Mac running a 64-bit kernel will not see the device at all. TrendNet does not seem to think this is a problem. There is a work-around (see below) if you're technically inclined, but this doesn't fill me with confidence in TrendNet's Macintosh support.This device is half the price of its main competition. If you know what you're doing, it's money well saved. If you want "just works" on a Mac, you may want to consider alternatives.On the upside, it actually provides enough power for serial-port-powered devices (such as the GC-IRL) to work reliably.The Technical Detail: The official TrendNet device driver for Mac does not have a 64-bit version. This means that any Mac that runs a 64-bit kernel will simply not see this device. TrendNet support will give you the run-around and tell you it's all your fault (system too old, system too new, whatever they can think of) but apparently won't understand what "64-bit driver" actually means. It turns out that they simply re-package the driver from their chipset manufacturer; if you're lucky, they will finally point you at prolific.com.tw, which has a perfectly fine 64-bit driver for Snow Leopard that works without problems.

Reviewer: 17 year Amazon Customer
Rating: 5.0 out of 5 stars
Title: Worked great!
Review: Worked great! Lasted a long time, would buy again!

Reviewer: Denis
Rating: 5.0 out of 5 stars
Title: Finally a serial cable that works with msv-2
Review: This is the fifth cable now and voila, it works with my diagnostic kit-MSV-2. Before trying the trendnet, it was disappointment after another not to mention the waste of money with useless serial cables I cant return from here Kenya. Thanks trendnet I had almost given up

Reviewer: N. Winocur
Rating: 5.0 out of 5 stars
Title: Lynx6 AL5B robot arm now works beautifully in Ubuntu (Karmic RC) Matlab 2009b
Review: We're using Lynx6 AL5B robot arms for class, controlled using Matlab.The Karmic RC of Ubuntu I'm using supports this adapter very well; I plugged it in and by the time I could type "sudo chmod a+wrx /dev/tty" and press the tab button, ttyUSB0 already existed and was ready to use (so yes, I ran the command "sudo chmod a+wrx /dev/ttyUSB0" to give the "other" group read/write access.)From there it was just a matter of changing the baud to match the jumpers on the robot arm's controller (sudo stty -F /dev/ttyUSB0 115200), then using "man stty" to read up on the rest of the possible flags and change them until "sudo stty -a -F /dev/ttyUSB0" would give an output including the following: "-parenb -parodd cs8 hupcl -cstopb cread clocal -crtscts-ignbrk -brkint -ignpar -parmrk -inpck -istrip -inlcr -igncr icrnl ixon -ixoff-iuclc -ixany -imaxbel -iutf8opost -olcuc -ocrnl onlcr -onocr -onlret -ofill -ofdel nl0 cr0 tab0 bs0 vt0 ff0isig icanon iexten echo echoe echok -echonl -noflsh -xcase -tostop -echoprtechoctl echoke"(It's possible it'll work even if not all the flags match the above exactly; I just know that this is how I have mine set.)I have to thank my professor for pointing out the stty command's usefulness, and I won't post any of his matlab code. But the point is that this thing works, and didn't require any crazy linux know-how or compiling anything.I'm assuming it would work just as well in Windows or Mac.

Reviewer: Mikael Lindgren
Rating: 5.0 out of 5 stars
Title:
Review: I'm using it with a Tech2 and Windows XP and it does what it should.

Reviewer: XÓCHITL DOMÍNGUEZ
Rating: 5.0 out of 5 stars
Title:
Review: Para el que puso que no sirve es porque no instaló los drivers que se requieren, a menos que tengas tu PC lista para su uso. Me sirvió muy bien, el precio es realmente nuevo ya que eso cuestan aquí con una calidad muchísimo menor.

Reviewer: elena r.
Rating: 5.0 out of 5 stars
Title:
Review: Ho dovuto sostituire il mio vecchio convertitore seriale, perfettamente funzionante, che non veniva riconosciuto dal mio nuovo PC aziendale Windows 10 Pro. Non appena ho attaccato il cavo USB al pc la periferica è stata riconosciuta immediatamente ed è subito pronta all'uso. Acquisto consigliato visto i problemi di driver avuti con altri convertitori

Reviewer: 雅
Rating: 5.0 out of 5 stars
Title:
Review: パソコンと望遠鏡（赤道儀）を接続して操作するために購入。某望遠鏡メーカーではこの製品をパッケージその他が同じなまま純正品として取り扱い、国内のショップで数倍の価格で売っている。（輸入の都合とかあるだろうから、べつに価格差について文句は言いませんよ）かなりの価格差があるし、製品によっては相性の問題でうまくいかないこともあると聞くが、問題なくうまくいった。同じものならこれを買った方が断然いい。パッケージはプラスチックで密閉されたもので、ハサミとかがないと開けられない。商品写真は白いけど、実際の青いのが届いたけど問題ないっす。MacとWindowsのドライバが入ったCDが付いてくる。Mac（Sierra）のParallels上のWindows10にインストールし、問題なく動作した。macOSの直では使う機会がないので試していない。（まあ大丈夫だろうけど）

Reviewer: franz
Rating: 5.0 out of 5 stars
Title:
Review: Je me faisait du soucis car il y a en ce moment beaucoup de rapports d'incompatibilité de drivers anciens avec Win10 Anniversary. Aucun problème avec ce convertisseur Trendnet: le driver s'installe à partir du CD livré et le convertisseur est immédiatement reconnu.Testé avec deux appareils "anciens" et exotiques: un pointeur de satellites Schwaiger SF 9000 dont j'ai pu mettre à jour la liste de satellites et des encodeurs de position pour télescope.