what chipset is this?

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.

is it work for Cisco 881router? Thanks

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.

is this compatible with windows 10 out of the box or do drivers need to be downloaded from website? thanks

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.

Are there DOS drivers for this or another usb serial device?

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.

Tripp Lite Keyspan High Speed Usb To Serial Adapter Pc

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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Description

⚡ Upgrade your legacy gear with lightning-fast USB serial power!

COMPACT PORTABLE - Lightweight design with detachable 3-foot USB cable for on-the-go pros
PLUG PLAY SIMPLICITY - Instantly add a serial port without rebooting or complex setup
POWER DIRECTLY FROM USB - Eliminate bulky adapters—draws power straight from your computer
UNIVERSAL COMPATIBILITY - Seamlessly works with Windows and Mac OS for cross-platform ease
BLAZING FAST SERIAL SPEEDS - Transfer data at 230 Kbps, twice the speed of standard serial ports

The Tripp Lite Keyspan USA-19HS is a high-speed USB-to-serial adapter that effortlessly connects 9-pin serial devices to modern USB ports. Supporting data transfer rates up to 230 Kbps and powered directly via USB, it offers plug-and-play convenience without external power. Compatible with Windows and Mac OS, it features an LED indicator for real-time status and comes with a detachable 3-foot USB cable, making it the perfect tool for professionals bridging legacy hardware with today’s technology.

Specifications

ASIN	B0000VYJRY
Best Sellers Rank	#49,744 in Computers ( See Top 100 in Computers ) #3,388 in USB Cables
Brand	TRIPP LITE
Brand Name	TRIPP LITE
Cable Type	USB
Cable type	USB
Color	Black
Compatible Devices	Camera, Laptop, PC, Printer, Tablet
Compatible Phone Models	Likely compatible with smartphones, specific models not listed
Compatible devices	Camera, Laptop, PC, Printer, Tablet
Compatible phone models	Likely compatible with smartphones, specific models not listed
Connectivity Technology	USB
Connector Gender	Male-to-Female
Connector Type	USB Type A
Connector type	USB Type A
Country Of Origin	USA
Customer Package Type	Standard Packaging
Customer Reviews	4.7 out of 5 stars 2,262 Reviews
Data Transfer Rate	0.23 Megabits Per Second
External Testing Certification	REACH, CE, FCC
Frequency	230000 Hz
Global Trade Identification Number	00031112681245, 00624672945133, 00672603000413, 00672603004138, 00734089953406, 00767887431647, 00778888661421, 00858399242460, 07123290453653
Included Components	USA-19HS Keyspan High-Speed USB-to-Serial Adapter; USB Type-A cable, 3 ft.; CD with driver software and Owner's Manual
Indoor Outdoor Usage	Indoor
Item Length	3 Feet
Item Weight	0.1 Pounds
Manufacturer	KeySpan
Model	USA-19HS
Model Name	(USA-19HS)
Number of Items	1
Number of Pins	9
Other Special Features of the Product	High Speed
Part Number	USA-19HS
Recommended Uses For Product	Connecting to and transferring data between computers and peripheral devices such as modems, digital cameras, printers, graphics tablets, PDAs, bar code scanners, label printers, and other serial devices.
Special features	High Speed
Specification Met	No
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 Count

Reviews

C**N

Funziona perfettamente

Prodotto di qualità superiore alla media. Disponibile anche un piccolo software per gestire la periferica e testare la comuncazione. Arrivato in tempi brevissimi!

6.06.2017

O**O

Keyspan USB to serial adapter is just the best

Keyspan USB to serial adapter is just the best in the market. It works immediately 100% compatible with windows. I got also one I used with my mac for years. Strongly recommended!

3.11.2021

M**O

Funcional

Algo caro pero funciona perfectamente.

20.05.2026

G**.

Fait le job parfaitement !

Professionnel de l'informatique, j'ai installé cet adaptateur USB-série chez un client garagiste, en remplacement d'un adaptateur d'une autre marque, pourtant neuf mais qui provoquait des erreurs de communication avec un boîtier de diagnostics automobile GM Tech2. Avec celui-là, aucun souci de communication entre le pc et le boîtier Tech2. C'est d'ailleurs ce modèle qui est préconisé par General Motors.

20.11.2016

I**S

Celestron Telescope Upgrade - Essential Item

I got this to upgrade the software on my Celestron Nexstar SE8 Telescope and Starsense finder and it did the trick perfectly. The item supplied by Celestron didn't work and their own website even suggests getting this item. So..... the big question for Celestron is why not include an adaptor that actually works. Hey ho - well worth the expense for a quality item.

3.02.2015

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