StarTech. com ICUSB2321FIS 8. 3ft USB to Serial RS232 Adapter Cable with FTDI Chipset & Optical Isolation - TAA Compliant
Business volume discounts
Technical guidance
Preparation & staging
QC · ON · AB · BC
Product Features
Technical Overview
This adapter employs an FTDI FT232RL chipset, which ensures robust driver compatibility and stable COM port retention across Windows, Linux, and macOS systems. The 256-byte FIFO buffer enhances data throughput, while the optical isolation circuits provide 2500Vrms of protection against voltage spikes and noise interference.
The cable terminates in a standard DB-9 male RS-232 connector on one end and a USB 2.0 Type A male connector on the other, supporting full handshaking signals for reliable serial communication. It includes 500W bi-directional surge protection to safeguard both the host and connected devices.
This section brings together practical product details such as Connector Type on First End, Connector on First End Details, Connector Type on Second End, Color Family, so buyers can judge configuration, deployment fit, and day-to-day suitability with less guesswork.
Key Product Advantages
This adapter delivers critical advantages for maintaining legacy serial connectivity in modern USB-centric environments. Its integrated protection features and high compatibility make it a dependable choice for business and industrial applications.
Enhanced Protection
Optical isolation and surge protection circuits prevent damage from electrical noise and power surges, ensuring long-term reliability for sensitive equipment.
- 2500Vrms optical isolation
- 500W bi-directional surge protection
Broad Compatibility
The FTDI chipset provides stable driver support across multiple operating systems, with COM port retention for consistent device recognition.
- FTDI FT232RL chipset
- Windows, Linux, macOS support
Simplified Deployment
USB-powered operation eliminates external power supplies, while the included driver CD and manual streamline installation and configuration.
- No external power required
- Includes driver CD and manual
Deployment / Use Cases
This USB to serial adapter is ideal for environments where legacy serial devices must interface with modern computers or embedded systems. Its robust design suits both office and industrial settings, providing reliable connectivity without requiring hardware upgrades.
Common applications include connecting point-of-sale terminals, barcode scanners, CNC machines, scientific instruments, and network equipment consoles. The TAA compliance also makes it suitable for government and educational procurement where trade agreement adherence is required.
This section brings together practical product details such as Connector Type on First End, Connector on First End Details, Connector Type on Second End, Color Family, so buyers can judge configuration, deployment fit, and day-to-day suitability with less guesswork.
Retail & Hospitality
Connect legacy POS systems, receipt printers, and cash drawers to modern USB-based computers for seamless transaction processing.
Industrial Automation
Interface with PLCs, sensors, and control panels that use RS-232 communication, enabling data logging and system monitoring from standard PCs.
Physical Profile
The adapter features a compact, black housing that blends discreetly into workspace environments. With a weight of 3.80 ounces, it is lightweight yet durable, and the 8.3-foot cable length provides flexible placement options for devices located at a distance from the host computer.
The physical profile is practical for deployment planning because the dimensions and weight are clearly defined: 3.80 oz (107.73 g). This helps confirm rack, shelf, desk, or cabinet fit before installation.
- Weight
- 3.80 oz (107.73 g)
What's in the Box
The package includes all necessary components for immediate deployment.
Highlights
- FTDI FT232RL chipset for reliable USB to serial conversion
- 2500Vrms optical isolation protects against electrical noise and surges
- 8.3-foot cable length provides flexible device placement
- USB-powered design requires no external power adapter
- Supports baud rates up to 921.6 Kbps with configurable serial parameters
- TAA compliant for government and educational procurement
- Includes driver CD and instruction manual for easy setup
- 2-year limited warranty backed by StarTech.com
Specifications
| Specifications | |
|---|---|
| Manufacturer | StarTech.com |
| Manufacturer Part Number | ICUSB2321FIS |
| Brand Name | StarTech.com |
| Product Name | 1 Port FTDI USB to Serial RS232 Adapter Cable with Isolation |
| Packaged Quantity | 1 Each |
| Product Type | Data Transfer Adapter |
| Technical Information | |
| Connector Type on First End | DB-9 RS-232 Serial - Male |
| Connector on First End Details | 1 x 9-pin DB-9 RS-232 Serial - Male |
| Connector Type on Second End | USB 2.0 Type A - Male |
| Connector on Second End Details | 1 x 4-pin USB 2.0 Type A - Male |
| Features | Surge Protection |
| Physical Characteristics | |
| Color Family | Black |
| Product Color | Black |
| Weight (Approximate) | 3.80 oz (107.73 g) |
| Miscellaneous | |
| Package Contents | 1 Port FTDI USB to Serial RS232 Adapter Cable with Isolation 1 x Driver CD 1 x Instruction Manual |
| Country of Origin | Taiwan |
| TAA Compliant | Yes |
| Environmentally Friendly | Yes |
| Environmental Certification | EU RoHS |
| Environmental Compliance | Restriction of Hazardous Substances (RoHS) 2,Registration, Evaluation, Authorization and Restriction of Chemicals (REACH),Waste Electrical and Electronic Equipment Directive (WEEE) |
| Warranty | |
| Limited Warranty | 2 Year |
User Manual
FAQ
What is the purpose of the optical isolation in this adapter?
The optical isolation provides 2500Vrms of electrical separation between the USB and serial sides of the adapter. This protects connected equipment from ground loops, voltage spikes, and electrical noise, which is especially important in industrial environments or when connecting sensitive legacy devices to modern computers.
Does this adapter require an external power supply?
No, this adapter is USB-powered and draws all necessary power from the host computer's USB port. This eliminates the need for bulky external power adapters or wall outlets, simplifying deployment and reducing cable clutter in workspace environments.
What is the maximum cable length and data transfer rate?
The cable is 8.3 feet (2.5 meters) long, providing flexibility for device placement. It supports a maximum baud rate of 921.6 Kbps, with configurable parity modes (None, Odd, Even, Mark, Space), data bits (7 or 8), and stop bits (1 or 2) to match various serial device requirements.
What does TAA compliance mean for this product?
TAA (Trade Agreements Act) compliance indicates that this adapter is manufactured in Taiwan, making it eligible for procurement by U.S. federal government agencies and other organizations that require products from designated countries under trade agreements. This ensures it meets specific sourcing regulations for public-sector purchases.
What protection features does this adapter include?
The adapter integrates 2500Vrms optical isolation circuits and 500W bi-directional surge protection. These features safeguard both the host computer and connected serial devices from electrical surges, ground loops, and transient voltage spikes, enhancing reliability in environments with unstable power or electrical noise.
What refresh rate or brightness details are available?
Display-oriented products are best judged through screen, connectivity, and installation specifications. Those facts help buyers confirm visual fit, mounting flexibility, and deployment suitability more clearly than generic summary text.
What input or connectivity options are listed?
1 x 9-pin DB-9 RS-232 Serial - Male.
Does the display support VESA mounting or adjustment features?
Display-oriented products are best judged through screen, connectivity, and installation specifications. Those facts help buyers confirm visual fit, mounting flexibility, and deployment suitability more clearly than generic summary text.
| Qty | Price | Available |
|---|
