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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 niche pick — read recent reviews before buying in the keyboards & mice category, priced around $150.99. Compare close alternatives before committing.

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. Mixed or limited buyer feedback at this price point — focus your evaluation on recent reviews that specifically address build quality and long-term reliability, and shortlist one or two close alternatives before deciding.

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

  • ✓ 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

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.

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

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