StarTech.com FTDI USB to Serial RS232 Data Transfer Adapter, Optical Isolation, Surge Protection, 8.2ft Cable, DB-9 Male to USB-A Male, TAA Compliant - ICUSB2321FIS (2 Year Warranty)

StarTech.com USB to RS232 serial adapter showing USB connector and DB9 interface with optical isolation housing-alternate-image1
Close-up view of StarTech.com USB to serial adapter housing showing DB9 connector and ventilation design-alternate-image2
Detailed view of USB Type-A connector on StarTech.com serial adapter cable-alternate-image3

StarTech.com FTDI USB to Serial RS232 Data Transfer Adapter, Optical Isolation, Surge Protection, 8.2ft Cable, DB-9 Male to USB-A Male, TAA Compliant - ICUSB2321FIS (2 Year Warranty)

StarTech.com ICUSB2321FIS

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$133.49
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Length: 8.20ft

  • 1.17ft
  • 1.22ft
  • 1.31ft
  • 1.41ft
  • 1ft
  • 2.24ft
  • 2.50
  • 3
  • 3.28ft
  • 3.90
  • 4.20
  • 4.72
  • 4.80
  • 5
  • 5.10
  • 5.12
  • 5.80
  • 5.90
  • 6
  • 6.10ft
  • 6.56ft
  • 6.60ft
  • 6.90
  • 6ft
  • 7.10
  • 7.20
  • 8.20ft
  • 8.70
  • 8.90
  • 9.60
  • 10
  • 10.20
  • 11.25
  • 11.80

Color: Black

  • Black
  • Silver
  • White

Part Number: ICUSB2321FIS

  • ICUSB2321FIS

Product Key Features

  • 🔌 FTDI USB to RS232 DB9 Serial Adapter with 8.2ft cable length
  • 🛡️ Features optical isolation and surge protection for industrial equipment safety
  • 💻 Compatible with Windows, Windows CE, Mac OS and Linux
  • 🔄 Supports COM port retention and additional customization features
  • ⚡ USB 2.0 and 1.1 compatible interface
  • 📊 DB-9 RS-232 Serial Male to USB Type A Male connectivity
  • ✅ Certified: CE, FCC, WHQL compliant
  • ♻️ Environmentally friendly with WEEE, RoHS, and REACH certifications
  • ⚖️ Lightweight at 3.80 oz
  • 🏢 Backed by 2-year StarTech warranty
$133.49
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StarTech.com FTDI USB to Serial RS232 Data Transfer Adapter, Optical Isolation, Surge Protection, 8.2ft Cable, DB-9 Male to USB-A Male, TAA Compliant - ICUSB2321FIS (2 Year Warranty)

This item: StarTech.com FTDI USB to Serial RS232 Data Transfer Adapt...

$133.49

Total price: $133.49
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  • Tech Specs
  • Refund Policy

StarTech.com

ICUSB2321FIS

FTDI USB to Serial RS232 Adapter Cable with Isolation and Surge Protection

Transform your USB port into a reliable RS232 connection with StarTech.com's ICUSB2321FIS isolated serial adapter. This professional-grade adapter features optical isolation, surge protection, and FTDI chipset compatibility, making it ideal for industrial applications and sensitive control equipment.

Advanced Protection Features for Industrial Applications

  • Integrated optical isolation circuits protect against electrical damage
  • Built-in surge protection for sensitive control equipment
  • 8.20 ft cable length for flexible installation options
  • FTDI chipset supports COM retention and advanced customization

Comprehensive Connectivity Options

The adapter features a male DB-9 RS-232 serial connector on one end and a USB 2.0 Type A male connector on the other, ensuring compatibility with a wide range of industrial devices. The 8.20-foot cable length provides ample reach for various setup configurations.

Universal Compatibility

Designed for versatility, this adapter supports multiple operating systems including Windows®, Windows CE, Mac OS, and Linux. It's TAA compliant and meets various environmental certifications including WEEE, RoHS, and REACH standards.

Package Contents

  • 1 Port FTDI USB to Serial RS232 Adapter Cable with Isolation
  • Driver CD
  • Instruction Manual

Warranty and Support

Backed by StarTech.com's 2-year warranty and free lifetime technical support, ensuring reliable performance and peace of mind for your industrial connectivity needs.

StarTech.com USB to RS232 serial adapter showing USB connector and DB9 interface with optical isolation housing

Industrial-Grade Protection with Integrated Optical Isolation

The ICUSB2321FIS adapter features a robust design with built-in optical isolation circuits housed in its compact black enclosure. This critical safety feature creates a complete electrical separation between your USB port and RS232 device, preventing damage from voltage spikes and ground loops. The adapter's 8.2-foot cable length provides flexible installation options while maintaining signal integrity.

Technical Specifications

  • Integrated optical isolation for electrical protection
  • DB9 RS232 male to USB Type-A connectivity
  • 8.2 ft cable length for flexible positioning

Applications

  • Industrial automation control systems
  • Manufacturing equipment interfaces
  • Critical infrastructure monitoring
Close-up view of StarTech.com USB to serial adapter housing showing DB9 connector and ventilation design

Reliable Serial Communication with FTDI Chipset

The adapter's housing features the reliable FTDI chipset, visible through the sleek black casing with StarTech.com branding. This premium component ensures consistent performance and broad compatibility across operating systems. The rugged construction includes ventilation slots for optimal thermal management during continuous operation.

Technical Specifications

  • FTDI chipset for enhanced compatibility
  • Ventilated housing design for thermal management
  • Surge-protected DB9 interface

Applications

  • Legacy equipment integration
  • Industrial control systems
  • Data acquisition systems
Detailed view of USB Type-A connector on StarTech.com serial adapter cable

Universal USB Connectivity with Surge Protection

The USB Type-A connector features a durable construction with reinforced strain relief for long-term reliability. This industrial-grade connector ensures consistent data transfer while maintaining electrical isolation. The molded design prevents cable stress and maintains signal integrity even in challenging industrial environments.

Technical Specifications

  • USB 2.0 Type-A interface with strain relief
  • Molded connector design for durability
  • Compatible with USB 1.1 and 2.0 ports

Applications

  • PLC programming and monitoring
  • Industrial sensor integration
  • Medical equipment connectivity
General Information
ManufacturerStarTech.com
Manufacturer Part NumberICUSB2321FIS
Brand NameStarTech.com
Product Name1 Port FTDI USB to Serial RS232 Adapter Cable with Isolation
Packaged Quantity1
Product TypeData Transfer Adapter
Technical Information
Connector Type on First EndDB-9 RS-232 Serial - Male
Connector Gender on First EndMale
Connector on First End Details1 x 9-pin DB-9 RS-232 Serial - Male
Connector Type on Second EndUSB 2.0 Type A - Male
Connector Gender on Second EndMale
Connector on Second End Details1 x 4-pin USB 2.0 Type A - Male
FeaturesSurge Protection
Cable Length8.20 ft
Physical Characteristics
Product ColorBlack
Weight (Approximate)3.80 oz
Miscellaneous
Package Contents
  • 1 Port FTDI USB to Serial RS232 Adapter Cable with Isolation
  • 1 x Driver CD
  • 1 x Instruction Manual
Certifications & Standards
  • CE
  • FCC
  • WHQL
Environmentally FriendlyYes
Environmental CertificationWEEE,RoHS,REACH
Country of OriginTaiwan
TAA CompliantYes
Warranty
Limited Warranty2 Year
Return Policy Time to Return
Standard Return Policy We offer a hassle-free 30-day returns policy for domestic (US) orders, excluding non-refundable items. Refund or Replacement within 30 days of the delivery date. All products that fall under the Standard Return Policy qualify for our 30-Day Hassle-Free Returns.
Replacement Only Return Policy Replacement within 30 days of the delivery date.
Manufacturer Only Return Policy Covered by the manufacturer's warranty. Please refer to the terms and conditions for the manufacturer's warranty or contact the manufacturer.
FAQ
The StarTech.com ICUSB2321FIS adapter converts a USB 1.1 or 2.0 port into an RS232 DB9 port, allowing you to connect, monitor, and control serial devices. It's specifically designed for industrial applications with built-in optical isolation circuits and surge protection to protect sensitive control equipment from electrical damage.
This adapter includes two key protection features: integrated optical isolation circuits and surge protection. These features are crucial for protecting expensive industrial serial devices from electrical damage, making it particularly suitable for critical control equipment installations. The protection systems help prevent damage from power surges and electrical interference.
The adapter offers broad operating system compatibility, supporting Windows®, Windows CE, Mac OS, and Linux. This wide compatibility makes it particularly valuable for mixed computing environments. The FTDI chipset ensures reliable performance across these different operating systems.
The adapter features an 8.2ft (2.5m) cable with a DB-9 RS-232 Serial Male connector on one end and a USB 2.0 Type A Male connector on the other end. This length provides flexibility in device placement while maintaining signal integrity.
The package includes the 1 Port FTDI USB to Serial RS232 Adapter Cable with Isolation, a driver CD for easy installation, and a comprehensive instruction manual. All components necessary for setup and operation are provided in the box.
The adapter is certified with CE, FCC, and WHQL certifications. It's also environmentally certified with WEEE, RoHS, and REACH compliance. Additionally, it's TAA compliant, making it suitable for government and institutional purchases that require TAA compliance.
StarTech.com provides a 2-year warranty for this adapter, along with free lifetime technical support. This comprehensive warranty coverage ensures peace of mind for professional installations and critical applications.
The FTDI chipset in this adapter provides several advantages, including COM port retention, additional customization options, and enhanced compatibility features not typically found in other solutions. This makes it particularly valuable for applications requiring consistent port assignments and specialized configurations.

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