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Tripp Lite
Tripp Lite Keyspan High-Speed USB to Serial Adapter, PC & Mac, USB-A to DB9 RS232 Male
USA-19HS

Tripp Lite Keyspan High-Speed USB to Serial Adapter, PC & Mac, USB-A to DB9 RS232 Male

Field laptops dropped native serial ports long ago, yet plenty of lab equipment and network switches still talk through DB connectors. This Keyspan adapter bridges that gap cleanly. It attaches to an open USB-A port and shows up as an ordinary COM port for your terminal programs.

★★★★★4.6 out of 5 from 2401 ratings
$38.66

Price as the listing last showed it. Listings move, so the figure on the page you land on is the one that counts at checkout.

  • 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
What it does

How this one is built

Plug and talk

Your computer recognizes the attached hardware as a standard COM port on insertion. Legacy utility software and serial terminal tools communicate through it without special workarounds, making field service on legacy equipment practical from current laptops.

Bus power design

Operating current pulls directly through the USB host connection. You carry no wall warts, extra power leads or bulky power bricks into crowded telecom closets or crawl spaces behind industrial test benches.

High throughput bridge

Data moves across the link at high serial transfer rates to handle heavy telemetry streams and swift firmware loads. It easily outpaces the hardware ports built into older desktop motherboards without dropping characters.

Activity light

A built-in status light shows power state and flashes as traffic moves across the pins. You can see whether a connected device is answering queries before tearing apart configuration files.

On the nameplate

These are the figures published for this unit. Where a number is missing here it was not printed on the listing, and we would rather leave the row out than fill it with a guess.

Specifications
ConnectorUsb
ColorBlack
Weight1.6 ounces
WarrantyComes with Manufacturer Warranty.
USA-19HS$38.66