Other Sellers on Amazon
100% positive over last 12 months
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
Return this item for free
Free returns are available for the shipping address you chose. You can return the item for any reason in new and unused condition: no shipping charges
Learn more about free returns.- Go to your orders and start the return
- Select the return method
- Ship it!
Return this item for free
Free returns are available for the shipping address you chose. You can return the item for any reason in new and unused condition: no shipping charges
Learn more about free returns.- Go to your orders and start the return
- Select the return method
- Ship it!
Purchase options and add-ons
Compatible Devices | Laptop |
Specific Uses For Product | personal |
Connector Type | USB Type A |
Color | White |
Item Dimensions LxWxH | 2.05 x 1.38 x 0.59 inches |
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
Frequently bought together
Similar items that may ship from close to you
- SABRENT USB 2.0 to Serial (9 Pin) DB 9 RS 232 Converter Cable, Prolific Chipset, HEXNUTS, [Windows 11/10/8.1/8/7/VISTA/XP, Mac OS X 10.6 and Above] 2.5 Feet (CB-DB9P)Amazon's Choicein Serial Cables33% offLimited time dealFREE Shipping on orders over $35 shipped by AmazonGet it as soon as Tuesday, Apr 2
- OIKWAN USB to RS232, USB Serial Adapter with FTDI Chipset,USB 2.0 to Male DB9 Serial Cable for Windows 11,10, 8, 7, Vista, XP, 2000, Linux and Mac OS(6ft)…Amazon's Choicein Serial AdaptersFREE Shipping on orders over $35 shipped by AmazonGet it as soon as Tuesday, Apr 2
- USB to Serial RS-232 Adapter with LED Indicators, FTDI Chipset, Supports Windows 11/10/8.1/8/7/, Mac OS X 10.6 and AboveFREE Shipping on orders over $35 shipped by AmazonGet it as soon as Tuesday, Apr 2
- Tripp Lite Keyspan High-Speed USB to Serial Adapter, PC & Mac, USB-A to DB9 RS232 Male, 3 Foot / 0.91 Meter Cable, 3-Year Warranty (USA-19HS)FREE Shipping by AmazonGet it as soon as Tuesday, Apr 2
- StarTech.com 1 Port USB to Serial RS232 Adapter - Prolific PL-2303 - USB to DB9 Serial Adapter Cable - RS232 Serial Converter (ICUSB232V2)FREE Shipping on orders over $35 shipped by AmazonGet it as soon as Tuesday, Apr 2
- CableCreation USB to RS232 Adapter with PL2303 Chipset, 6.6ft USB 2.0 Male to RS232 Female DB9 Serial Converter Cable for Cashier Register, Modem, Scanner, Digital Cameras, CNC,BlackFREE Shipping on orders over $35 shipped by AmazonGet it as soon as Tuesday, Apr 2
Important information
Legal Disclaimer
no international orders please
Visible screen diagonal
19" / 49 cm
Compare with similar items
This Item 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 | Recommendations | dummy | dummy | dummy | dummy | |
Try again! Added to Cart Add to Cart | Try again! Added to Cart Add to Cart | Try again! Added to Cart Add to Cart | Try again! Added to Cart Add to Cart | Try again! Added to Cart Add to Cart | Try again! Added to Cart Add to Cart | |
Price | $11.99$11.99 | $32.46$32.46 | -20% $39.44$39.44 List: $49.60 | $9.99$9.99 | -31% $10.99$10.99 List: $15.99 | $14.99$14.99 |
Delivery | Get it as soon as Tuesday, Apr 2 | Get it as soon as Tuesday, Apr 2 | Get it as soon as Tuesday, Apr 2 | Get it as soon as Tuesday, Apr 2 | Get it as soon as Tuesday, Apr 2 | Get it as soon as Tuesday, Apr 2 |
Customer Ratings | ||||||
Value for money | 4.6 | 4.6 | 4.4 | 4.4 | 4.1 | 4.2 |
Easy to install | 4.8 | 4.9 | 4.5 | 4.2 | 4.3 | — |
Quality of material | 4.6 | 4.7 | — | 4.5 | 4.3 | 4.4 |
Tech Support | 4.2 | 4.9 | 4.0 | 3.8 | 3.7 | — |
Durability | 4.6 | — | 4.8 | — | 4.3 | 4.1 |
Sold By | Amazon.com | Amazon.com | Amazon.com | BenfeiDirect | CableCreation | Oikwan |
connector type | USB Type A | Serial/USB | usb | DB9 | USB 2.0 | RJ45, USB Type C |
number of ports | 3 | 1 | 1 | 0 | 2 | 1 |
current rating | — | 256 amps | — | 1 amps | 1 amps | — |
power plug type | no plug | no plug | no plug | — | — | — |
warranty | — | Lifetime | Limited | Limited | Lifetime | Limited |
From the manufacturer
Overview
|
|
|
---|---|---|
USBSupports USB 1.1 and compatible with USB 2.0 and USB 3.0 ports. |
RS-232 Serial ConnectorConnect RS-232 serial devices such as modems and network switches using the widely supported USB standard found in most laptops and desktops today. |
Flexible CableIntegrated flexible 540 mm (21 in.) USB cable accommodates most installation scenarios. |
TU-S9 | TU-P1284 | TU-S9E | TU-S4 | TU-S910 | |
---|---|---|---|---|---|
Add to Cart
|
Add to Cart
|
Add to Cart
|
Add to Cart
|
||
Customer Reviews |
4.5 out of 5 stars
3,103
|
4.2 out of 5 stars
241
|
4.5 out of 5 stars
3,103
|
4.5 out of 5 stars
3,103
|
4.5 out of 5 stars
3,103
|
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 | USB 1.1 ; 1 x USB Type A 1 x RS-232 (9-pin) male |
Data Rate | Up to 6 Mbps | 12 Mbps | • RS-232 port: Up to 921.6Kbps • Ethernet port: Up to 100Mbps | Up to 460Kbps | Up to 6Mbps |
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 | Windows 11, 10, 8.1, 8, 7;Mac OS 10.11, 10.10, 10.9, 10.8, 10.7, 10.6 |
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) | 0° – 40° C (32° – 104° F) |
Operating Humidity | Max. 85% non-condensing | Max. 85% (non-condensing) | Max. 95% non-condensing | Max. 85% non-condensing | Max. 85% non-condensing |
Power Consumption | 500 mA (max.) | 500 mA (max) | 1.1W (max) | 0.6W (max) | 500mA (max.) |
Cable Length | 540 mm (21 in) | 2 m (6.6 ft.) | - | - | 3m (10 ft.) |
Weight | 40 g (1.4 oz.) | 105 g (3.7 oz.) | • 102g (3.6 oz.) | • 413g (14.5 oz.) | 250g (8.82 oz.) |
What's in the box
Looking for specific info?
Product information
Product Dimensions | 2.05 x 1.38 x 0.59 inches |
---|---|
Item Weight | 1.41 ounces |
ASIN | B0007T27H8 |
Item model number | TU-S9 |
Customer Reviews |
4.5 out of 5 stars |
Best Sellers Rank | #10 in Serial Cables |
Is Discontinued By Manufacturer | No |
Date First Available | February 14, 2005 |
Manufacturer | TRENDnet |
Language | English |
Country of Origin | China |
Feedback
Product Description
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)
Customer reviews
Customer Reviews, including Product Star Ratings help customers to learn more about the product and decide whether it is the right product for them.
To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzed reviews to verify trustworthiness.
Learn more how customers reviews work on AmazonCustomers say
Customers like the performance, quality and ease of use of the adapter. For example, they mention it works flawlessly, is of reasonable quality and that it's easy to program uniden scanners. That said, opinions are mixed on the length, driver requirement, value, connectivity, and compatibility.
AI-generated from the text of customer reviews
Customers like the performance of the adapter. For example, they mention that it works flawlessly, it works perfectly to configure their network, and Fibre Channel switches, and that it even works well with a Windows 7-64 machine. The drivers from the CD and the adaptor worked perfectly, and the ones direct from Prolific are working great. The machine controls work right out of the box, and all control sequences work great.
"...cables to connect to older machine controls, and they work right out of the box...." Read more
"...Pros: Cheap, works fine when it works.Cons: Unhelpful support if it doesn't work, somewhat questionable future-proofing...." Read more
"...I plugged my Uniden Scanner into the adapter and everything worked perfectly, right out of the box...." Read more
"...I installed the windows seven drivers from the CD and the adapter worked perfectly. The CDR Tool immediately recognized the adapter as COM3...." Read more
Customers are satisfied with the quality of the adapter. They mention that it is very good for the price, it is well constructed, and has high reliability. Some say that the price is relatively cheap.
"...These Arduino products are great, very flexible, and relatively cheap. Programming software is free and the language used is more or less "C"...." Read more
"...Pros: Cheap, works fine when it works.Cons: Unhelpful support if it doesn't work, somewhat questionable future-proofing...." Read more
"...I just uboxed and tested it, but it looks just fine. Money well spent." Read more
"...This one was very reasonably priced and another reviewer indicated it worked in the same application...." Read more
Customers find the electronic adapter very simple to install and use. They mention that the driver installed very smoothly, and the Devise Manager identified the TU-S9. They also say that the cable comes with software that installed smoothly, with explicit instructions. Customers also mention that it's easy to go onto their website without providing any login, and that the converter will help them get set up.
"...Programming software is free and the language used is more or less "C". Plenty of programming examples are in existence...." Read more
"...The package info needs to be updated. The driver installed very smoothly and the Devise Manager identified the TU-S9...." Read more
"...You don't have to manually install software, just plug-n-go. Windows will recognize the cable and install any necessary driver...." Read more
"...The driver installation was very fast and completed without any problems...." Read more
Customers are mixed about the length of the adapter. Some mention it's excellent, plenty long enough to be wrapped, and works well enough in a complex environment. Others say that it'd be better if the cable was a little longer and had better build quality.
"...The scanner came with a serial cable but my laptop does not have one. To make things worse, I am using an Apple Macbook Pro...." Read more
"...So, the cable works great on the latest PCs, but make sure the manufacturer of your serial device has working drivers for your PC's version of..." Read more
"...The second problem is that it has captive nuts on the DB9 connector...." Read more
"What I liked: - Long cable (21 inches without the connectors) - It just works (tested with Cisco PIX/ASA/Switch/Router)..." Read more
Customers are mixed about the value of the adapter. Some mention it's low cost, one of the cheapest serial to USB adapters you can get that's a name brand, and a cost effective way of connecting RS232 devices to the computer. However, others say that it'd be a bit pricey for what it does, a total waste of money, and completely useless.
"...That too was a very simple install and it is free. Just go to their web site, download and install." Read more
"...Overall great product and great price!" Read more
"...I noticed that this adaptor is more expensive than others. Although, I also noticed that the baud rate is much higher on this adaptor than on others...." Read more
"...Kudos to TRENDnet for making such a great product at a great price!" Read more
Customers are mixed about the driver requirement of the adapter. Some mention that it does not require any drivers or CDs, while others say that it requires a proprietary driver from the Trendnet website and a full system reboot.
"...This cable comes with a driver CD and a simple set of instructions: 1)..." Read more
"...The next stumbling block was that Hyperterminal was NOT installed on my ACER...." Read more
"...No driver needed, just plugged it in, looked in device manager under ports, and there it was ready to go...." Read more
"These converters work well and do not need a driver on Windows (either Windows has the driver or it grabs it automatically from update)...." Read more
Customers are mixed about the connectivity of the adapter. Some mention that it connects with no issue, while others say that it won't work or that the cable to the adaptor head doesn't seem to be firmly connected.
"...The PC connected to the GPS via COM4 and communicated with the GPS unit perfectly through the PC's USB port...." Read more
"...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...." Read more
"...product handles it like a champ...not a single hiccup, and always a rock-solid connection." Read more
"...Oh and Ive also noticed at times the program wont connect to the scope until it has been alt/az aligned thru the hand control." Read more
Customers are mixed about the compatibility of the adapter. Some mention that it was immediately recognized by Windows 8 and OSX, and is compatible with drivers across many operating systems. However, others say that the driver is never recognized, has some issues with coms, and causes BSOD issues.
"...of VID_067B&PID_2303, which makes it compatible with drivers across many operating systems without having to resort to tweaks...." Read more
"...This was the terminal one for me. The COM driver constantly caused BSOD issues when I was doing much of any virtual COM work...this was so frequent,..." Read more
"...converter uses a genuine Prolific PL-2303 HXD chip and is fully supported on Windows 8 without any driver installation necessary...." Read more
"...It was easy to install and will also run under Windows XP mode on Windows 7 virtual machine, you will need to use the driver CD as Windows 7 did not..." Read more
Reviews with images
-
Top reviews
Top reviews from the United States
There was a problem filtering reviews right now. Please try again later.
To test my luck, I installed the device on my wife's Windows 10 computer with the same result - works perfectly.
Don't let you heart skip a beat. With both installations the Device Manager showed the presence of the TU-S9, but when I clicked on "properties," the message came up that the driver wasn't present. In both installations, after shutting down Windows Device Manager and starting it again, it identified the presence of the TU-S9 (this time identifying the com port) and everything worked perfectly from there.
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.
Top reviews from other countries
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)