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

⚡ Connect legacy tech with modern speed—stay ahead, stay connected!

COMPACT TRAVEL READY - Lightweight 3-foot cable and 2-ounce design fits perfectly in your laptop bag for on-the-go pros.
PLUG PLAY SIMPLICITY - Instant COM port recognition for seamless integration with PC & Mac—no drivers fuss.
POWER WITHOUT THE BULK - Draws power directly from your USB port—ditch external adapters and stay mobile.
TURBOCHARGED SERIAL SPEEDS - Transfers data at up to 230 Kbps—double the speed of standard serial ports for efficient workflows.
TRUSTED DURABILITY SUPPORT - Backed by a 3-year warranty and industry certifications—reliability you can count on.

The TRIPP LITE Keyspan High-Speed USB to Serial Adapter bridges classic RS232 serial devices with modern USB-A ports on PC and Mac. Featuring plug-and-play ease, a 3-foot detachable cable, and data transfer speeds up to 230 Kbps, it powers directly from your computer without extra adapters. Its LED indicator keeps you informed of connection status and data activity, while a robust 3-year warranty ensures dependable performance for professionals managing legacy hardware.

Specifications

ASIN	B0000VYJRY
Best Sellers Rank	#11 in Serial Adapters #1,622 in Computer Cables & Interconnects
Brand	TRIPP LITE
Brand Name	TRIPP LITE
Cable Type	USB
Color	Black
Compatible Devices	Camera, Laptop, PC, Printer, Tablet
Compatible Phone Models	No Compatible Phone Models
Connectivity Technology	USB
Connector Gender	Male
Connector Type	Usb
Customer Package Type	Standard Packaging
Customer Reviews	4.7 out of 5 stars 2,386 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, Outdoor
Item Length	3 Feet
Item Weight	5.28 ounces
Manufacturer	KeySpan
Maximum Voltage	5 Volts (DC)
Model	USA-19HS
Model Name	(USA-19HS)
Number of Items	1
Number of Pins	9
Other Special Features of the Product	Not_Performance_Used
Part Number	USA-19HS
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
Warranty Description	Comes with Manufacturer Warranty.

Reviews

D**H

18.07.2025

P**.

5.05.2007

D**H

21.01.2026

M**G

20.03.2007

T**T

11.04.2009

T**M

8.03.2012

C**F

19.01.2006

S**E

12.12.2018

S**.

24.01.2016

C**N

6.06.2017

O**O

3.11.2021

G**.

20.11.2016

I**S

3.02.2015

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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)

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