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TRENDnet USB to RS-232 Serial Converter TU-S9 (White)

by TRENDnet
4.2 out of 5 stars  See all reviews (454 customer reviews)

List Price: $14.99
Price: $8.25 Free Standard Shipping (3-5 days) Details
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Style: USB to RS-232 Serial Converter
USB to PS/2 Converter
USB to Parallel
USB to RS-232 Serial Converter
  • Connect a RS-232 serial device such as a modem to a USB port on your computer
  • Supports up to 500kbps data transfer rate
  • Detects USB suspend condition
  • Supports BUS Power, no external power adapter required
  • USB 1.1 Specifications, RS-232 serial interface. Supports data rate up to 6Mbps. Detects USB suspend condition
  • Compliant with Windows 7/Vista/XP/2000/ME/98SE and Mac OS 10.1-10.6
  • Easy Plug and Play installation with 2-years limited warranty
  • Install as a standard Windows COM port, full RS-232 modem control signals, RS-232 data signals, TxD, RxD, RTS, CTS, DSR, DTR, DCD, RI, GND
  • Powered by USB port, no external power adapter required.

Frequently Bought Together

TRENDnet USB to RS-232 Serial Converter TU-S9 (White) + OBD-II & Electronic Engine Management Systems Techbook (Haynes Techbook) + INNOVA 3160B ABS/SRS+ Professional CanOBDII Diagnostic Code Scanner with Enhanced Live Data
Price for all three: $227.18

Buy the selected items together


Special Offers and Product Promotions

Style: USB to RS-232 Serial Converter
  • Free Standard Shipping (3-5 days) on this item from Amazon.com. Simply select Standard Shipping during checkout (no code required). Valid on qualifying items only. Here's how (restrictions apply)

Product Details

Style: USB to RS-232 Serial Converter
  • Product Dimensions: 9 x 7 x 2 inches ; 4 ounces
  • Shipping Weight: 4.2 ounces (View shipping rates and policies)
  • Shipping: Currently, item can be shipped only within the U.S.
  • ASIN: B0007T27H8
  • Item model number: TU-S9
  • Average Customer Review: 4.2 out of 5 stars  See all reviews (454 customer reviews)
  • Amazon Best Sellers Rank:
  • Date first available at Amazon.com: February 14, 2005

Product Description

Style: USB to RS-232 Serial Converter

This USB to Serial converter allows you to connect a RS-232 serial device such as a modem to a USB port on your Desktop or Laptop PC. Connect a RS-232 serial device such as a modem to a USB port on your computer. Easy installation with Universal Plug and Play. Compliant with Windows 7/Vista/XP/2000/ME/98SE and Mac OS 10.1~10.6 . 2-year limited warranty.

Customer Reviews

Most Helpful Customer Reviews
195 of 199 people found the following review helpful
5.0 out of 5 stars Great Cross-Platform Support March 9, 2009
Style Name:USB to RS-232 Serial Converter|Amazon Verified Purchase
This USB-RS232 converter is based on the PL-2303 chipset and is one of the few with true cross-platform support. Other models are lacking drivers for Mac, Linux, Vista/7, and 64-bit flavors of Windows. If you need something that'll just work no matter what you're running get a USB-RS232 adapter based either on the PL-2303 (like this one) or the FTDI chipsets. If you can't get this to work out of the box, just Google for "PL-2303 <your OS> drivers" and you should be good to go.

There are other converters out there that provide more reliable data transfer at higher speeds, but this is a great buy for the money and will suffice for just about any task you need it for.
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74 of 75 people found the following review helpful
5.0 out of 5 stars Works with eTrex June 30, 2006
Style Name:USB to RS-232 Serial Converter
Used this to connect my Garmin eTrex with serial adapter to my USB only laptop. Installed with no difficulty and works as it should.
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53 of 55 people found the following review helpful
5.0 out of 5 stars Performs as it should June 17, 2006
Style Name:USB to RS-232 Serial Converter
Connected 4 of these to the same computer to run DNS. Till now works 24/7 for a couple of monts without any problem neither resouce conflicts (other SYBA hardware gave me tons of problems). Didn't have even to install the driver. WinXP recognized it as "Prolific USB-to-Serial Comm Port (COM3)" to (COM6). Recomended product.
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Most Recent Customer Reviews
2.0 out of 5 stars So far doesn't work
The item doesn't come with any software though the reviews keep talking about it. My computer recognizes that the printer exists but print jobs don't go through. Read more
Published 22 hours ago by Blc
4.0 out of 5 stars Trendnet USB to Serial Adapter
The Trend-net Serial Adapter works great and it was at a decent price. If you have an old piece of equipment that still uses a serial port this adapter along with a the Star-Tech... Read more
Published 1 day ago by Bob C
4.0 out of 5 stars Perfect for laptops without serial port
The overall build quality does feel just a little on the cheap side however it does not effect the useability of the adapter at all.
Published 3 days ago by Chris
5.0 out of 5 stars Great Price, Great Quality!!
it arrived really fast, i have a netbook, it doesnt have cd drive, but i dowloaded the drivers of the cable from the trendnet page, Coool!, the plastic looks really good!
Published 7 days ago by Ariot Parra Juarez
5.0 out of 5 stars Very Good
It works with windows 7 and 8. The only thing is you need the drivers when you use it on windows 8.
Published 9 days ago by Jose Espinoza
5.0 out of 5 stars Perfect
We had some ps/2 port connectors that we wanted to use for a UPS kvm switch and they work great. This prevented us from spending more mone on a whole new cable which cost arount... Read more
Published 11 days ago by DenHonuaKai
5.0 out of 5 stars Nice product
I purchased this product to interface some RS-232 devices to a USB slot for my wife's retail business. The product works as expected and got the job done!
Published 11 days ago by penpourri
4.0 out of 5 stars Yea! My Logitec trackball still works
I've been using a logitec trackball for many years which uses the old ibm mouse port. My new PC only has USB connections. This adapter works great plug and play.
Published 14 days ago by James Marlin
5.0 out of 5 stars Solved my problem
Laptops of now-a-days do not support devices that require serial ports, and many scientific field equipment require serial interfaces. Read more
Published 15 days ago by Nasiru
5.0 out of 5 stars Value for $$
This is a replacement for a more expensive version. This items works well with no issues. Great value at minimal cost.
Published 15 days ago by Richard Lombart
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