StarTech.com
StarTech 1-Port Metal USB to RS422/RS485 Serial Adapter, TAA (ICUSB422IS) | With Isolation, Industrial
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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
| Brand | StarTech.com |
|---|---|
| Color | Black |
| Finish | Black |
| Connectivity | USB |
| Model Number | ICUSB422IS |
| Input Voltage | 5 volts_of_direct_current |
| Warranty Type | Limited |
| Connector Type | Serial Adapter |
| Item Dimensions | 4.6 x 2.5 x 0.9 inches |
| Mfr Part Number | ICUSB422IS |
| Number of Items | 1 |
| Number of Ports | 1 |
| Power Plug Type | No Plug |
| Compatible Devices | Desktop |
| Warranty Description | 2 Years |
| Item dimensions L x W x H | 4.6 x 2.5 x 0.9 inches |
| Specific Uses For Product | Industrial automation, Data acquisition, Telecommunications, Process control, Test and measurement |
| Global Trade Identification Number | 00065030830683 |
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.
*Price sourced from Amazon.com. Last updated 2026-08-17. Price and availability subject to change.
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