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.

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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)

Product ID: 1193036

Details

Brand
TRIPP LITE
Cable Type
USB
Compatible Devices
Camera Laptop
Connector Type
Usb
Special Feature

⚡230 Kbps ultra-fast data transfer

💡LED status & activity indicator

🔌Plug & play USB-A to DB9 serial

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Description

🔗 Connect smarter, work faster—never get left behind!

COMPACT TRAVEL READY - Lightweight 3-foot cable and 2-ounce adapter fit perfectly in your laptop bag for on-the-go professionals.
EFFORTLESS PLUG PLAY - No drivers or external power needed—just connect and get instant COM port access on both PC and Mac.
BLAZING FAST SERIAL SPEEDS - Experience data transfer rates up to 230 Kbps—double the speed of standard serial ports for seamless device communication.
REAL TIME ACTIVITY MONITORING - Built-in LED indicator keeps you informed of connection status and data flow at a glance—never miss a beat.
UNIVERSAL DEVICE COMPATIBILITY - Connects effortlessly to routers, barcode scanners, GPS units, POS systems, and more—future-proof your workflow.

The Keyspan High-Speed USB to Serial Adapter (USA-19HS) bridges legacy serial devices with modern USB-A ports, delivering up to 230 Kbps data transfer speeds. Compatible with both PC and Mac, it offers plug-and-play convenience without external power, a compact 3-foot cable, and an LED activity indicator. Trusted by professionals for connecting network gear, barcode scanners, GPS units, and more, it’s backed by a 3-year warranty and designed for seamless, reliable performance.

Specifications

ASIN	B0000VYJRY
Best Sellers Rank	#13 in Serial Adapters #2,026 in Computer Cables & Interconnects
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	4.6 4.6 out of 5 stars (2,394)
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	0.1 Pounds
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
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.

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S/.301

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Sold byAmazon PeruDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Desertcart purchases this item on your behalf and handles shipping, customs, and support to Peru.

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TrustScore 4.5 | 7,300+ reviews

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