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)
*Price sourced from Amazon.com. Last updated 2026-06-06. Price and availability subject to change.
Bottom line: The 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) is a category leader on buyer feedback in the keyboards & mice category, priced around $41.99, rated 4.7★ across 2,388 verified Amazon reviews. A confident buy for most shoppers in this category.
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…
SpecPicks Verdict
SpecPicks classifies TRIPP LITE Keyspan High-Speed USB to Serial Adapter, PC & Mac, USB-A… as a category leader on buyer feedback in the keyboards & mice category, based on 2,388 verified Amazon reviews and our ranking model that weights rating × review-volume × price-fit. TRIPP LITE's positioning sits comfortably above the category median. Use the Compare tool to put it side-by-side with two or three close alternatives before clicking through to Amazon.
Common buyer scenarios for keyboards & mice of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the Amazon listing before purchase. Prices, stock, and Prime eligibility update directly from Amazon's catalog and may have moved since this page was last verified.
Pros & Cons
Pros
- ✓ Highly rated — 4.7★ average across customer reviews
- ✓ Large, well-vetted feedback pool (2,388 reviews)
- ✓ Serial adapter allows a serial device to be connected to a USB computer
- ✓ Backed by TRIPP LITE's warranty and support channels
- ✓ Ships via Amazon with Prime eligibility and the standard returns policy
Cons
- ✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
- ✗ Price, stock, and Prime eligibility update from Amazon and may have changed since this page was last verified
Key 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
Full Specifications
| Brand | TRIPP LITE |
|---|---|
| Color | Black |
| Model | USA-19HS |
| Frequency | 230000 Hz |
| Cable Type | USB |
| Model Name | (USA-19HS) |
| Unit Count | 1.0 Count |
| Item Length | 3 Feet |
| Part Number | USA-19HS |
| Connectivity | USB |
| Compatibility | PC, Mac |
| Connector Type | Usb |
| Number of Pins | 9 |
| Maximum Voltage | 5 Volts (DC) |
Ready to buy?
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) is available on Amazon with Prime shipping and the full Amazon returns policy. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
*Price sourced from Amazon.com. Last updated 2026-06-06. Price and availability subject to change.
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