---
product_id: 1193036
title: "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)"
brand: "tripp lite"
price: "€ 76.29"
currency: EUR
in_stock: true
reviews_count: 9
category: "Tripp Lite"
url: https://www.desertcart.it/products/1193036-keyspan-high-speed-usb-to-serial-adapter-pc-and-mac
store_origin: IT
region: Italy
---

# 230 Kbps data transfer speed LED status & data activity indicator USB-A to DB9 RS232 Male 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)

**Brand:** tripp lite
**Price:** € 76.29
**Availability:** ✅ In Stock

## Summary

> 🔗 Bridge the old with the new—connect smarter, faster, everywhere.

## Quick Answers

- **What is this?** 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) by tripp lite
- **How much does it cost?** € 76.29 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.it](https://www.desertcart.it/products/1193036-keyspan-high-speed-usb-to-serial-adapter-pc-and-mac)

## Best For

- tripp lite enthusiasts

## Why This Product

- Trusted tripp lite brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Plug & Play Simplicity:** Instantly connect legacy serial devices to modern USB ports without hassle.
- • **Power Without the Bulk:** No external power adapter needed—draws power directly from your computer’s USB port.
- • **Travel-Ready & Durable:** Lightweight 3-foot cable and compact design fit perfectly in your laptop bag for on-the-go professionals.
- • **Universal Compatibility:** Seamlessly works with both PC and Mac, supporting Windows up to 10 and Mac OS Big Sur & Monterey.
- • **Blazing-Fast Serial Speeds:** Experience data transfers up to 230 Kbps—double the speed of standard serial ports.

## Overview

The Tripp Lite Keyspan High-Speed USB to Serial Adapter (USA-19HS) is a reliable, plug-and-play solution that connects 9-pin serial devices to USB-A ports on both PC and Mac. Supporting data transfer speeds up to 230 Kbps, it eliminates the need for external power and features an LED indicator for real-time status. With a durable 3-foot cable and a 3-year warranty, it’s the go-to adapter for professionals needing seamless legacy device integration.

## Description

Tripp Lite's Keyspan RS 232 to USB adapter allows you to connect a 9 pin serial device to a computer or laptop with a USB 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 ft. (0.91 m) 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 X (up to Mac OS Big Sur 11.6 and Monterey 12.0.1). Compliant with the Federal Trade Agreements Act (TAA) for GSA Schedule purchases.

Review: Reliable and easy to use - a must have adapter - This Tripp Lite Keyspan USB to Serial Adapter has been a lifesaver for connecting older serial devices to my newer laptop. Setup was quick and easy – plug and play with no issues on both PC and Mac. The build quality is excellent, the 3-foot cable length is perfect, and the connection is stable and consistent. It’s been extremely reliable for data transfers, and I’ve had zero communication errors. Highly recommend this for anyone needing a dependable RS232 to USB solution. Worth every penny, especially with the 3-year warranty included!
Review: Not cheap but works perfectly - No complaints--this adapter does what it says it'll do. As an experiment, I wanted to see if I could load software for an old Palm Pilot and sync in Windows 11. The sync cradle is RS232 (serial) so I needed an adapter. The Tripp Lite was completely plug 'n' play and was working in a few minutes. Only very minor complaint is I haven't yet found a way to adjust RS232 settings (such as baud rate) in Device Manager. I haven't done exhaustive research into that (it works great for my setup so I haven't needed to). I like that the adapter has an LED--indicates when it's connected, when it's transmitting data, etc. Nice.

## Features

- Serial adapter allows a serial device to be connected to a USB computer
- Plug and play convenience:DB9 serial port is seen as a COM port by your computer, and is available for use by any program that accesses COM ports
- No need for an external power adapter:draws power directly from your computer via the USB connection
- DB9 serial port supports data transfer rates up to 230 Kbps:twice the speed of a standard built in serial port
- LED shows adapter status and data activity at a glance

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0000VYJRY |
| Best Sellers Rank | #14 in Serial Adapters #1,925 in Computer Cables & Interconnects |
| Brand | TRIPP LITE |
| Cable Type | USB |
| Color | Black |
| Compatible Devices | Camera, Laptop, PC, Printer, Tablet |
| Compatible Phone Models | No Compatible Phone Models |
| Connector Gender | Male |
| Connector Type | Usb |
| Customer Package Type | Standard Packaging |
| Customer Reviews | 4.6 4.6 out of 5 stars (2,372) |
| Data Transfer Rate | 0.23 Megabits Per Second |
| Date First Available | November 26, 2006 |
| Frequency | 230000 Hz |
| Global Trade Identification Number | 00031112681245, 00624672945133, 00672603000413, 00672603004138, 00734089953406, 00767887431647, 00778888661421, 00858399242460, 07123290453653 |
| Indoor/Outdoor Usage | Indoor, Outdoor |
| Is Discontinued By Manufacturer | No |
| Item Weight | 5.3 ounces |
| Item model number | USA-19HS |
| Language | English |
| Manufacturer | KeySpan |
| Model Name | (USA-19HS) |
| Number of Items | 1 |
| Number of Pins | 9 |
| Product Dimensions | 9 x 5.8 x 2.75 inches |
| Recommended Uses For Product | Connecting to network devices, storage equipment, GPS receivers, barcode readers, and other serial devices |
| Special Feature | Not_Performance_Used |
| UPC | 014445840060 031112353340 804993673636 858399242460 031112582559 172302821734 734089953406 069060150841 778888661421 962327325078 803982832801 031112681245 767887431647 521227996506 012304704829 638084883242 012302523378 640206602297 014444594230 163120866755 734911098718 012304764496 672603000413 731215350016 624672945133 672603004138 617407365108 642125217125 |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** TRIPP LITE
- **Cable Type:** USB
- **Compatible Devices:** Camera, Laptop, PC, Printer, Tablet
- **Connector Type:** Usb
- **Special Feature:** Not_Performance_Used

## Images

![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) - Image 1](https://m.media-amazon.com/images/I/619Ux24kxpL.jpg)

## Questions & Answers

**Q: what chipset is this?**
A: I'm sure the OP either already has the answer for this, or has moved on...but I wanted to answer this question for anyone else that might want to know (because it took me quite a while to research all the information for myself).This device does not use either of the two main manufacturer's chipsets (it's not an FTDI nor a Prolific).  Rather, it uses a TI (Texas Instruments) chipset.  While those other chipset manufacturers both make some quality chips, the TI USB-->serial chipset seems to be the de-facto standard in maximum compatibility with the widest array of serial device types.

**Q: is it work for Cisco 881router? Thanks**
A: I'm not familiar with the 881 product specifically, but it, and older Keyspan models, have worked fine for every other Cisco router or switch that I have worked with over the last 20 years.  I've also used it with Adtran and other products using serial connections.

**Q: is this compatible with windows 10 out of the box or do drivers need to be downloaded from website? thanks**
A: I am continuing to use the 8.1 drivers I downloaded from keyspan on win 10. The zip from keyspan was named Driver-for-USA-19HS-vb5-Windows-8.1.zip  but they may have a newer version for win10 but I did not need it.

**Q: Are there DOS drivers for this or another usb serial device?**
A: Sorry I have no real answer to your question.  I am doubtful about DOS drivers for the Keyspan device, and the Tripp Lite/Keyspan web page does not show any drivers at all for the device.  Normally Windows and MacOS have built-in compatible drivers, which in my experience work perfectly well, but I suspect there are none for DOS.  I believe the cheaper devices that use the Prolific chipset may have DOS drivers.  They often are shipped with a mini-CD with drivers and manuals.  I have found this impossible to use since all my computers use slot-loading optical drives which cannot accept the mini-CD.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Reliable and easy to use - a must have adapter
*by D***H on July 18, 2025*

This Tripp Lite Keyspan USB to Serial Adapter has been a lifesaver for connecting older serial devices to my newer laptop. Setup was quick and easy – plug and play with no issues on both PC and Mac. The build quality is excellent, the 3-foot cable length is perfect, and the connection is stable and consistent. It’s been extremely reliable for data transfers, and I’ve had zero communication errors. Highly recommend this for anyone needing a dependable RS232 to USB solution. Worth every penny, especially with the 3-year warranty included!

### ⭐⭐⭐⭐⭐ Not cheap but works perfectly
*by D***H on January 21, 2026*

No complaints--this adapter does what it says it'll do. As an experiment, I wanted to see if I could load software for an old Palm Pilot and sync in Windows 11. The sync cradle is RS232 (serial) so I needed an adapter. The Tripp Lite was completely plug 'n' play and was working in a few minutes. Only very minor complaint is I haven't yet found a way to adjust RS232 settings (such as baud rate) in Device Manager. I haven't done exhaustive research into that (it works great for my setup so I haven't needed to). I like that the adapter has an LED--indicates when it's connected, when it's transmitting data, etc. Nice.

### ⭐⭐⭐⭐⭐ Works great - IBM T40, XP SP2
*by P***. on May 5, 2007*

KEYSPAN USA-19HS USB to Serial adapter: Summary: I had a device that came with a USB-Serial adapter from FTDI Chip that only worked intermittently, was poorly documented, and the vendor ignored my e-mail. The KEYSPAN USA-19HS worked flawlessly, is well documented, and comes with a powerful utility (which I did not need). Details: Recently I acquired a "Duplimate Mark IV bis" duplicate bridge card dealer. It uses a serial connection to the host Windows computer. I'm using an IBM Thinkpad T40 running Windows XP SP2. The computer has no serial ports, but the Duplimate came with an adapter, as well as a serial cable. That adapter has a captive USP cable, and a DB9-F connector for the serial device (unusually, with screws - no independent serial cable needed). The adapter was identified only by manufacturer, FTDI Chip. It came with a mini-CD, which I explored and used to print out the manual. I eventually deduced that the adapter was an HL-340, which I found stamped on the DB9 connector and as the name of a folder on the mini-CD, but not in the manual. I installed a driver in that folder, and got the dealer to work - kind of. It would actually deal a hand only about half the time, otherwise taking several seconds to report a communications error. By the time I had hit Ctrl-A to restart dealing for the fifth time on a deal, I was wondering what I would do if it refused to deal. FTDI Chip has a web site, and I downloaded a driver from there - no use. I did perform a successful reinstall without using the HL-340 folder directly, with no change in results. A detailed e-mail to FTDI chip produced no response. If you ever have a chance to buy something from FTDI Chip - DON'T! Two days ago, I ordered the KEYSPAN USA-19HS from Amazon for just under $32, with free shipping. It arrived today, and I put it through its paces. It comes with a full-size CD. First, I removed the old driver. When I installed the Keyspan software, which must be done with the adapter disconnected, the driver went right in. (I also took the time to register the product.) A Keyspan USB Serial Adapter folder appeared on my Programs menu, and it contains a powerful and potentially useful Keyspan Serial Assistant - as well as the manual in HTML and PDF. Don't read the manual on CD - it's slow - wait to read it on your computer. The manual is excellent, tho you may not need it. The adapter has a short detachable USB cable, which is probably fine for most applications; but if you need a longer one, you can substitute. Using the serial assistant or Start-Control Panel-System-Hardware-Ports confirmed that the newly connected serial port was COM3. The DB9-M connector has nuts for the screws on a typical serial cable, so it would not mate with the Duplimate, which also has nuts. No problem, I had the serial cable that came with the Duplimate. While using the extra cable is not as convenient, I judge this to be the correct implementation, because it will mate with captive or specialized serial cables. Because my WinDup software was already configured for COM3, I was able to fire it up and start dealing immediately. No more communications errors, no more waiting to hit Ctrl-A if the machine did not start dealing immediately. It always started dealing as soon as I inserted the next board.

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*Product available on Desertcart Italy*
*Store origin: IT*
*Last updated: 2026-03-02*