StarTech. com ICUSB232INT2 Internal USB to 2-Port RS232 Serial Motherboard Adapter - DB-9 Male - Bus Powered - FTDI Chipset
Business volume discounts
Technical guidance
Preparation & staging
QC · ON · AB · BC
Product Features
Technical Overview
This adapter provides two independent DB-9 male RS-232 serial ports through a single internal USB 2.0 connection. The FTDI chipset ensures broad operating system compatibility and reliable data transfer rates up to 1 Mbps per port, with hardware flow control support for demanding serial communication applications.
The internal interface uses a standard 9-pin IDC female connector that connects directly to motherboard USB headers, while the external ports feature standard DB-9 male connectors compatible with most serial cables and devices. The bus-powered design simplifies installation by eliminating external power requirements, making it ideal for systems where power availability is limited.
This section brings together practical product details such as Connector Type on First End, Connector on First End Details, Connector on Second End Details, Weight (Approximate), so buyers can judge configuration, deployment fit, and day-to-day suitability with less guesswork.
Key Product Advantages
This adapter delivers reliable legacy connectivity in modern computing environments where serial ports are no longer standard. The FTDI chipset provides excellent driver stability across Windows, Linux, and macOS systems, while the bus-powered design simplifies deployment by eliminating external power adapters.
Dual-Port Design
Two independent RS-232 serial ports allow simultaneous connection of multiple serial devices through a single internal USB connection, maximizing connectivity options without occupying multiple expansion slots.
- Independent port operation
- Simultaneous device support
- Space-efficient design
Internal Installation
The compact form factor and internal mounting keep the adapter securely housed within the computer chassis, protecting connections and maintaining a clean external appearance while providing permanent serial connectivity.
- Chassis-protected installation
- Clean cable management
- Permanent connectivity solution
Deployment / Use Cases
This adapter is ideal for IT professionals and system integrators who need to maintain connectivity with legacy serial devices in modern computing environments. Its internal design makes it particularly suitable for servers, industrial PCs, and point-of-sale systems where external adapters might be vulnerable to damage or disconnection.
Common applications include connecting to serial console ports on networking equipment, interfacing with industrial control systems, supporting legacy scientific instruments, and maintaining compatibility with older point-of-sale peripherals. The dual-port configuration enables redundant connections or simultaneous communication with multiple serial devices from a single host system.
Server Management
Provides reliable serial console access for server management and troubleshooting, particularly in data center environments where KVM over IP solutions may not be available or practical.
Industrial Applications
Enables connectivity with PLCs, CNC machines, and other industrial equipment that still rely on RS-232 interfaces for configuration and data transfer in manufacturing and automation environments.
Physical Profile
The adapter features a lightweight design at just 2.22 ounces (62.94 grams), making it easy to install without adding significant weight to the system. The 2-foot cable provides sufficient length for routing within standard ATX and server chassis while maintaining clean cable management. The compact form factor fits easily in most computer cases, and the internal mounting ensures the adapter remains securely positioned once installed.
- Weight
- 2.22 oz (62.94 g)
Highlights
- Adds two RS-232 serial ports via internal USB motherboard header
- FTDI chipset ensures reliable driver support across multiple operating systems
- Bus-powered design eliminates need for external power adapter
- 2-foot cable provides flexible routing within computer chassis
- RoHS compliant for environmentally responsible deployment
- 2-year limited warranty from StarTech.com
- Standard DB-9 male connectors for compatibility with serial cables
- Internal installation protects connections and maintains clean exterior
Specifications
| Specifications | |
|---|---|
| Manufacturer | StarTech.com |
| Manufacturer Part Number | ICUSB232INT2 |
| Brand Name | StarTech.com |
| Product Name | 24in Internal USB Motherboard Header to 2 Port Serial RS232 Adapter |
| 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 | 2 x 9-pin DB-9 RS-232 Serial - Male |
| Connector on Second End Details | 1 x 9-pin IDC Serial - Female |
| Physical Characteristics | |
| Weight (Approximate) | 2.22 oz (62.94 g) |
| Miscellaneous | |
| Country of Origin | Taiwan |
| Environmentally Friendly | Yes |
| Environmental Compliance | Restriction of Hazardous Substances (RoHS) |
| Warranty | |
| Limited Warranty | 2 Year |
User Manual
FAQ
What type of devices can I connect to this serial adapter?
This adapter connects to any device with a standard DB-9 female RS-232 serial interface, including networking equipment for console access, industrial control systems like PLCs, legacy point-of-sale peripherals, scientific instruments, and older computer peripherals that require serial connectivity.
Does this adapter require external power?
No, this adapter uses bus-powered operation, drawing all necessary power directly from the motherboard's USB header connection. This eliminates the need for external power adapters and simplifies installation in systems where power outlets are limited.
How many serial ports does this adapter provide?
This adapter provides two independent DB-9 male RS-232 serial ports, allowing simultaneous connection of two separate serial devices. Both ports operate independently and can be used concurrently for different applications or devices.
What is the maximum data transfer rate?
The adapter supports data transfer rates up to 1 Mbps per port with the FTDI chipset, which is sufficient for most serial communication applications including console access, industrial device communication, and legacy peripheral connectivity. Hardware flow control is supported for reliable data transmission.
Is this adapter RoHS compliant?
Yes, this adapter is RoHS (Restriction of Hazardous Substances) compliant, meaning it meets environmental standards by limiting the use of specific hazardous materials. This makes it suitable for deployment in environments with strict environmental compliance requirements.
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?
2 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 |
|---|
