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StarTech USB to Serial Adapter, 2-Port, DB9, FTDI, TAA (ICUSB2322I) | Wall Mount, Din Rail Clips, Industrial, COM Port Retention
StarTech.com

StarTech.com StarTech USB to Serial Adapter

Bottom line: The StarTech.com StarTech USB to Serial Adapter: Splits one USB port into two full RS232 serial COM ports; main trade-off: premium priced versus basic single-port USB serial dongles.

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By , Founder & Editor-in-Chief · Listing data updated

Mike Perry — Hardware researcher since 2014. For retro PC hardware and period-correct parts, synthesises manufacturer documentation, community compatibility lists and marketplace listings rather than first-hand lab testing. Core beat: GPU performance across gaming, rendering, and local-LLM inference.

Pros & Cons

Pros

  • ✓ Splits one USB port into two full RS232 serial COM ports
  • ✓ Genuine FTDI chipset for stable Windows, Mac and Linux drivers
  • ✓ COM port assignments retained automatically across reboots
  • ✓ Rugged metal housing built for harsh industrial environments
  • ✓ Wall-mount brackets plus top-hat DIN rail clips included

Cons

  • ✗ Premium priced versus basic single-port USB serial dongles
  • ✗ Only two ports; larger rollouts need multiple units
  • ✗ RS232 only, no RS422 or RS485 signaling support
  • ✗ DB9 male ports may need null-modem or gender changers

Manufacturer description

The ICUSB2322I 2-Port Industrial USB to Serial Hub with DIN Rail Clips converts a single USB port into two RS232 serial ports, enabling you to connect to, monitor and control your serial devices. Featuring rugged metal construction, with sturdy wall-mounting brackets and top-hat DIN Rail clips (included), this USB to Serial Hub provides versatile mounting options and a robust solution for both harsh industrial environments and simple desktop installations. This USB powered adapter also retains assigned serial COM port values once connected, allowing the same values to be automatically…

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SpecPicks Verdict

SpecPicks scored StarTech.com StarTech USB to Serial Adapter using a rating × review-volume × price-fit model applied to published specs and reviews across the retro graphics & video category. StarTech.com's retro graphics & video 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 retro graphics & video 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 retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Key Features

  • 2-port USB to RS232 serial adapter
  • Rugged metal construction
  • Wall-mountable, with included DIN Rail clips
  • COM retention: COM Port assignments maintained across reboot
  • Baud Rate up to 921.6 Kbps

Full Specifications

BrandStarTech.com
ColorBlack
FinishMetallic
Unit Count1 Count
ConnectivityUSB
Model NumberICUSB2322I
COM retentionCOM Port assignments maintained across reboot
Warranty TypeLimited
Connector TypeSerial Adapter
Item Dimensions4.1 x 2.6 x 0.9 inches
Mfr Part NumberICUSB2322I
Number of Items1
Number of Ports2
Power Plug TypeNo Plug
Compatible DevicesDesktop, Monitor
Warranty Description2 Years
Item dimensions L x W x H4.1 x 2.6 x 0.9 inches
Specific Uses For Productpersonal
External Testing CertificationCE, FCC
Global Trade Identification Number00065030846943, 00100177442013
Full listing titleStarTech USB to Serial Adapter, 2-Port, DB9, FTDI, TAA (ICUSB2322I) | Wall Mount, Din Rail Clips, Industrial, COM Port Retention

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StarTech USB to Serial Adapter, 2-Port, DB9, FTDI, TAA (ICUSB2322I) | Wall Mount, Din Rail Clips, Industrial, COM Port Retention is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

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StarTech USB to Serial Adapter, 2-Port, DB9, FTDI, TAA (ICUSB2322I) | Wall Mount, Din Rail Clips, Industrial, COM Port Retention
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