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StarTech 1-Port Metal USB to RS422/RS485 Serial Adapter, TAA (ICUSB422IS) | With Isolation, Industrial
StarTech.com

StarTech 1-Port Metal USB to RS422/RS485 Serial Adapter, TAA (ICUSB422IS) | With Isolation, Industrial

Mike Perry has researched PC hardware since 2014, tracking 80+ GPU generations, 50+ retro handheld platforms, and 30+ vintage PC configurations. He synthesises community benchmarks, manufacturer specs, and public forum data into actionable buying guides.

$150.99

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*Price sourced from Amazon.com. Last updated 2026-08-17. Price and availability subject to change.

Bottom line: The StarTech 1-Port Metal USB to RS422/RS485 Serial Adapter, TAA (ICUSB422IS) | With Isolation, Industrial is a specs-and-price decision rather than a crowd-consensus one in the keyboards & mice category, priced around $150.99. Check the specification table above against one or two close alternatives — on price and spec fit, not on star ratings.

Pros & Cons

Pros

  • ✓ Provides one RS422/485 port while powering the device through USB
  • ✓ Backed by StarTech.com'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

The ICUSB422IS 1 Port Metal Industrial USB to RS422/RS485 Serial Adapter w/ Isolation connects to a computer using USB and allows you to connect any RS-422 or RS-485 serial device via the provided DB9 port or hard-wired to the terminal block. The USB to serial adapter features circuit isolation to ensure that sensitive controls and devices will not be damaged while connected, making it a viable solution for connecting costly industrial serial devices. The RS422/485 Converter receives full power via the host USB connection, and provides power to the attached serial device without requiring an…

SpecPicks Verdict

SpecPicks scored StarTech 1-Port Metal USB to RS422/RS485 Serial Adapter, TAA… using a rating × review-volume × price-fit model applied to our editorial and benchmark analysis across the keyboards & mice category. StarTech.com's keyboards & mice lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

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.

Key Features

  • Provides one RS422/485 port while powering the device through USB
  • RS-485 mode supports Auto Transceiver Turn Around (ATTA)
  • Compatible with both USB 2.0 and USB 1.1
  • RS422/485 Baud rate up to 921.6 Kbps
  • Supports DB9 and terminal block connector

Full Specifications

BrandStarTech.com
ColorBlack
FinishBlack
ConnectivityUSB
Model NumberICUSB422IS
Input Voltage5 volts_of_direct_current
Warranty TypeLimited
Connector TypeSerial Adapter
Item Dimensions4.6 x 2.5 x 0.9 inches
Mfr Part NumberICUSB422IS
Number of Items1
Number of Ports1
Power Plug TypeNo Plug
Compatible DevicesDesktop
Warranty Description2 Years
Item dimensions L x W x H4.6 x 2.5 x 0.9 inches
Specific Uses For ProductIndustrial automation, Data acquisition, Telecommunications, Process control, Test and measurement
Global Trade Identification Number00065030830683

Ready to buy?

StarTech 1-Port Metal USB to RS422/RS485 Serial Adapter, TAA (ICUSB422IS) | With Isolation, Industrial is sold on the used and vintage market, where eBay carries the live inventory — Amazon does not stock this part. Prices and condition vary by seller and move in real time, so we link the live listing rather than quote a cached price. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

See live eBay listings →

*Price sourced from Amazon.com. Last updated 2026-08-17. Price and availability subject to change.

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