ICUSB2321FIS - Startech USB TO SERIAL RS232 ADAPTER - INTEGRATED | Aztek Computers
29+Years
SKU: Z3VAJI2FHQ |  Mfg. Part: ICUSB2321FIS  | UPC: 065030845373  |  0 Reviews  |     Share

ICUSB2321FIS - Startech USB TO SERIAL RS232 ADAPTER - INTEGRATED 2500VRMS OPTICAL ISOLATION CIRCUITS - S

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Condition: New

$131.64  $177.71

Product Overview

1 Port FTDI USB to Serial RS232 Adapter Cable with Optical Isolation Add an RS232 serial port with circuit isolation to your laptop or desktop computer, through USB.

Expert Overview

The STARTECH ICUSB2321FIS is a USB to Serial RS232 Adapter designed for adding an RS232 serial port to a laptop or desktop computer via USB. This adapter features integrated 2500VRMS optical isolation circuits, which protect connected devices and the host computer from electrical surges and ground loops, enhancing system reliability in environments with potential electrical interference. It is a small form factor, USB-powered device, eliminating the need for an external power adapter. The adapter is suitable for IT professionals and businesses needing to connect legacy serial devices to modern computers, facilitating data transfer and device control. Its COM port retention feature ensures the assigned serial port number remains consistent, simplifying configuration for fixed installations. The included 8.3ft (2.4m) cable provides flexible placement options.

Technical Specifications

MALL FORM FACTOR, SERIAL RS232 USB POWERED - COM PORT RETENTION - 8.3FT (2.4M);

Product Details

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  • Updated:
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  • STARTECH
  • ICUSB2321FIS
  • 065030845373
  • New
  • 2.82 lbs
  • 99 X 1 X 2
  • Today - Sep 05, 2026
  • Aug 29, 2026
Product Identifiers: Brand: Startech • Part #: ICUSB2321FIS • UPC: 065030845373 • Category: Port Expansion Cards

Frequently Asked Questions

What is the primary function of the optical isolation circuits?

The integrated 2500VRMS optical isolation circuits protect connected devices and the host computer from electrical surges and ground loops. This enhances system reliability and prevents damage in environments with potential electrical interference.

What is the length of the adapter cable?

The adapter cable has a length of 8.3 feet (2.4 meters). This provides flexibility for connecting devices over a moderate distance.

Does this adapter require an external power source?

No, the adapter is USB powered. It draws power directly from the USB port of the host computer, eliminating the need for an external power adapter.

What is COM port retention?

COM port retention ensures that the assigned serial port number remains consistent even if the adapter is disconnected and reconnected or moved to a different USB port. This simplifies configuration and management for fixed installations.

ICUSB2321FIS - Startech USB TO SERIAL RS232 ADAPTER - INTEGRATED 2500VRMS OPTICAL ISOLATION CIRCUITS - S

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$131.64