Model Number: USA-19HS

Keyspan High-Speed USB to Serial Adapter

Model Number: USA-19HS
Keyspan

Keyspan High-Speed USB to Serial Adapter

(1) |Highlights |Product PDF

Keyspan High-Speed USB to Serial Adapter

 
Connect devices with a 9-pin serial port, such as switches, routers, barcode scanners and network storage devices, to the USB Type-A port on your computer or laptop.
  • Connects 9-pin serial device to computer or laptop USB-A port
  • Supports data transfer speeds up to 230 Kbps
  • Detachable 3-foot USB cable included
  • No external power source required
  • Works with Windows (up to 10) and Mac OS (up to 10.10)

Overview

The USA-19HS Keyspan® High-Speed USB-to-Serial Adapter allows you to connect a serial device to a computer or laptop with a USB Type-A port. Widely recommended by serial device manufacturers, the USA-19HS attaches to switches, routers, barcode scanners, GPS units, point-of-sale devices, lab equipment, network storage devices and other devices with a 9-pin serial port. The included 3-foot detachable cable supports data transfer speeds up to 230 Kbps—twice as fast as a built-in serial port. The USA-19HS works with any USB cable up to 16 feet. An LED indicates data activity. This adapter requires no external power and, at just 2 ounces, packs away easily in your laptop bag for use on the go. Windows line monitor and data trace software included. Easy to upgrade with free software downloads. Works with Windows (up to 10) and Mac OS (up to 10.10). Compliant with the Federal Trade Agreements Act (TAA) for GSA Schedule purchases.

Features

Works with DB9 Serial Devices
  • Connects to switches, routers, barcode scanners, GPS units, point-of-sale devices, lab equipment, network storage devices, modems, graphics tablets and other devices with a 9-pin serial port
  • Supports data transfer speeds up to 230 Kbps—twice as fast as a built-in serial port

Easy to Set Up and Use
  • No external power supply needed
  • Weighs just 2 oz. for convenient transport in your backpack or laptop bag
  • Includes detachable 3-ft. USB Type-A cable
  • Works with any USB cable up to 16 ft.

Compatible with Most Systems
  • Works with Windows (up to 10) and Mac OS (up to 10.10), as well as Apple Sandbox applications
  • Upgradeable with free software downloads
  • Includes Windows line monitor and data trace software

TAA-Compliant
  • Compliant with the Federal Trade Agreements Act (TAA) for GSA Schedule purchases

System Requirements

  • 32- or 64-bit Windows (up to 10) or Mac OS (up to 10.10)
  • USB port

Package Includes

  • USA-19HS Keyspan High-Speed USB-to-Serial Adapter
  • USB Type-A cable, 3-ft. length
  • CD with driver software and Owner's Manual

Full Specifications

PRODUCT OVERVIEW
Product Overview Keyspan-by-Tripp Lite USB High-Speed Serial Adapter
PHYSICAL
Unit Dimensions (hwd / in.) 1 x 1.6 x 3.1
Color Black
CONNECTIONS
Connector A USB A (MALE)
Connector B DB9 (MALE)
CERTIFICATIONS
Certifications Tested to comply with RoHS, REACH, CE, FCC
WARRANTY
Product Warranty Period (Worldwide) 2-year limited warranty

REVIEW SNAPSHOT®

by PowerReviews
Tripp LiteKeyspan High-Speed USB to Serial Adapter
 
4.4

(based on 51 reviews)

Ratings Distribution

  • 5 Stars

     

    (36)

  • 4 Stars

     

    (7)

  • 3 Stars

     

    (2)

  • 2 Stars

     

    (2)

  • 1 Stars

     

    (4)

88%

of respondents would recommend this to a friend.

Reviewed by 51 customers

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5.0

It Just Works. VERY Reliable.

By Old-School Hacker

from San Jose, CA

Comments about Tripp Lite Keyspan High-Speed USB to Serial Adapter:

I've been using one of these for over 10 years on Win-XP, and it works every time, all the time. If you need to add RS-232 to a machine with only USB, you gotta get one of these.

Comment on this review

(2 of 2 customers found this review helpful)

 
5.0

Best UART adapter

By Shane

from San Jose, CA

Comments about Tripp Lite Keyspan High-Speed USB to Serial Adapter:

Over years of automated embedded device testing these have been the most reliable USB < -> UART adapters for me. I primarily use them from Linux and Mac with pyserial or Device::SerialPort, and sometimes from Windows with FlashMagic. Seems to work fine with Minicom and Screen too.

Comment on this review

(2 of 2 customers found this review helpful)

 
4.0

Think about redesigning the case.

By Modern Treasures

from Undisclosed

Comments about Tripp Lite Keyspan High-Speed USB to Serial Adapter:

Works great. The only thing I have problems with is with the rounded end of the actual case doesn't allow it to make good contact and kept vibrating out. I took a file and filed the end of the plastic case flat and have not had a problem since then.

Comment on this review

(2 of 2 customers found this review helpful)

 
5.0

Communicates Successfully Every Time

By Woody

from Undisclosed

Comments about Tripp Lite Keyspan High-Speed USB to Serial Adapter:

I have hundreds of clients who have equipment with which I occasionally I have to communicate. I use an Apple laptop with the latest OS. Because the client's devices use only PC Windows, I use Parallels to convert to the Windows platform. Then I use the Keyspan serial adapter and a special modem to get the signal onto the phone lines. The Keyspan works every time.

Comment on this review

(2 of 2 customers found this review helpful)

 
1.0

USA-19HS issues, unstable with USB 3.0, hard lockup on resume from standby

By UsbUARTuser

from Undisclosed

Comments about Tripp Lite Keyspan High-Speed USB to Serial Adapter:

The USA-19HS adapter and/or its driver causes following issues when computer resumes from S3 standby or sleep mode:

1. In case adapter is attached to USB 3.0 port, whether COM port is idle or open, the PC locks up while attempting to resume from standby (the lights turn on, fans start to turn, but there is no video/display). Reboot with reset button or power cycle is required.

2. In case adapter is attached to standard USB 2.0 or USB 1.1 port, the application that had COM port open at the time PC transitioned to sleep mode loses the connection to the port on system resume. The port must be re-opened within application after resume.

The issue with USB 3.0 comes up when using PC with Intel integrated USB 3.0 controller. I have also seen it with Asmedia USB 3.0 controllers, but they have problems of their own. Intel however is stable with everything else I have. Since IntelÕs USB 3.0 controller is present on every new PC, I thought it might be good idea to report the issue. I hope it is going to be resolved in the next USA-19HS driver update.

The only USB 3.0 host controller that USA-19HS does not seem to have stability issues with is one based on NEC/Renesas chips.

My current hardware is Intel Z97 chipset (Asus Z97-E mainboard) and USB 3.0 eXtensible host controller driver version is 3.0.2.54 (10/30/2014) running on Windows 7 64bit. But again, I have seen this issue with older systems that provide USB 3.0 ports. What makes the situation worse is that Z97 seems to route all USB 2.0 ports through new USB 3.0 controller and plugging adapter to USB 2.0 ports still causes PC to lock up on system resume.

The driver for USA-19HS has not really been updated since 2007. At that time there were no USB 3.0 controllers. The new driver installer has been released in 2010 to support Windows 7, but driver itself has not been updated. The driver version number as indicated by device manager, remains the same 3.7.0.5 as in 2007 release.

In my line of work I have been dealing with a lot of USB to serial adapters some purchased directly like USA-19HS, some bundled with other equipment.

The USA-19HS is based on Texas Instruments (TI) USB to UART chipset. The important thing to note is that adapters based on other chipsets do not have any of these problems.

I do like that this adapter continues to be supported on new operating systems and that it does not have issues other adapters have. Some other competing products are purposely, maliciously and automatically disabled by manufacturer for use on newer operating systems. They push new driver through windows update that detects chip version and depending on windows version either allow its use or not. Slightly older 64bit driver allows it on all windows versions (7,8,8.1). This is all in attempt to boost sales of new products with same functionality. I will never buy from the company that does this. It will boost sales of course, but for the competition. Some (two) have counterfeit chip problems and punish unsuspecting end users by pushing new driver through windows update that detects and disables the adapters based on these counterfeit chips. Hey, why litigate evil doers when you can have customers do the scrupulous work of determining whether what they buy is genuine or counterfeit. Again, I do not want to give business to companies that do this to me.

If not for USB 3.0 PC lockup and closed port on resume issues, I would highly recommend this product.

There is also the thing with subpar USB connector that does not snap cable tightly and allows it to slip out way too easily. But that is minor compared to other problems. I think I read some response to review that states supplier of connectors has been changed to resolve this issue.

Thanks.

Comment on this review

(2 of 2 customers found this review helpful)

 
5.0

Works Great.

By Vanin

from Undisclosed

Comments about Tripp Lite Keyspan High-Speed USB to Serial Adapter:

Only one we could find that works with a variety of CNC equipment. We use it to upload/download from a laptop.

Comment on this review

 
5.0

The industry standard!

By alarmman80

from Undisclosed

Comments about Tripp Lite Keyspan High-Speed USB to Serial Adapter:

I've been using this USB to serial adaptor for close to 5 years, and I've used others as well, and they're supposed to be compatible.... Don't hold your breath!

This is the one that will work with almost any OS and/or software! I am a 35 year alarm technician and also work with other tech as well. Save your time this is the one for you!

In my field, we still are way behind the time as most of the modems still used for downloading and programming systems are at least 35 years old as well

(Hayes Smartmodem) Which run around 300-1200 baud.

Comment on this review

 
5.0

It works

By jeffro

from Undisclosed

Comments about Tripp Lite Keyspan High-Speed USB to Serial Adapter:

I bought this product so I could download info from the internet to my car diagnostic device. I looked at a lot of them but only Tripp Lite 19HS fit the bill. When I received it I plugged right to my computer and it did the job.

Comment on this review

 
5.0

Only one that is Dependable.

By Wingnut

from Undisclosed

Comments about Tripp Lite Keyspan High-Speed USB to Serial Adapter:

I have used this product for over 8 years. They are the only ones that will always work no matter what platform you are on. Other usb-serial adapter are hit or miss as to functionality on different computers and system. This is the only one that I have found that the hardware and software are from the same people. This is the only ones that I would and do recommend.

Comment on this review

 
5.0

AV Industry must have

By Bombastic, LLC

from Undisclosed

Comments about Tripp Lite Keyspan High-Speed USB to Serial Adapter:

A lot of legacy and even current AV equipment still uses serial cable communication. I have a MacBook Pro running Yosemite, with Windows 8.1 running in Parallels. MOST of the AV configuration software is Windows only. This device allows my Virtual Windows PC to talk to an external serial device with this adaptor as if it were all native on it's own machine. Fantastic!

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Frequently Asked Questions

Although each Keyspan adapter is different, most Keyspan adapters support standard baud rates up to 230 Kbps.  Since each adapter is different, please refer to your adapter's documentation and/or packaging about its maximum baud rate.

Standard baud rates are set by your computer's OS (while maximum baud rate is usually set bu the serial port).  Standard baud rates include:

110
300
600
1200
2400
4800
9600
14400
19200
28800
38400
57600 
115200
230400
Yes. The USA-19HS is compatible with USB 3.0.
The USA-19HS uses a Texas Instruments/TI chipset.


Additional FAQs may be available on the USA-19HS model support page.


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