StarTech.com Internal USB to Serial RS232 Adapter - ICUSB232INT1
Add an RS232 serial port to any system with an available USB motherboard header. The ICUSB232INT1 ...Add an RS232 serial port to any system with an available USB motherboard header. The ICUSB232INT1 USB to RS232 Serial Adapter lets you add an RS232 port to any desktop system that is equipped with an available USB motherboard header. Unlike standard USB to serial cables, this cable is designed for use inside the PC case, affording an entirely internal solution with no mess or extra adapters needed. This compact and simple USB adapter offers a cost-effective solution that bridges the compatibility gap between modern computers and legacy serial peripherals. Backed by a StarTech.com 2-year warranty and free lifetime technical support. The StarTech.com Advantage - Direct connection from the motherboard header allows for a clean and completely contained setup, without taking up a PCI/PCI-Express slot in your system - Standard and low profile/half-height bracket included to ensure fitment in any system - Extensive list of OS support and Microsoft WHQL certified.
Best current price£13.84from Rapid Online - Rapid Electronics Ltd.
The StarTech.com ICUSB232INT1 is designed for users needing to connect legacy RS232 serial peripherals to modern desktop systems that lack native serial ports but have an available internal USB motherboard header. Its key benefit is providing a clean, internal solution that bridges this compatibility gap cost-effectively. A potential caveat is that it requires an internal USB header, making it unsuitable for systems without one. This adapter offers a single RS232 port, features a FTDI chipset for reliable performance, and includes necessary mounting brackets for easy integration.
All features
Model Part Number
ICUSB232INT1
Brand
StarTech.com
Extended Product Information
FAQs
Can this adapter be used with an external USB port?
No, the ICUSB232INT1 is designed specifically for internal USB motherboard headers. It cannot be connected to an external USB-A port.
What is the maximum data transfer speed supported?
The adapter supports a maximum baud rate of 115.2 Kbit/s.
Does this adapter require external power?
No, the adapter draws power directly from the internal USB motherboard header.
What operating systems are compatible with this adapter?
It is compatible with a wide range of Windows versions (including 98SE, XP, Vista, 7, 8, 10, and Server editions) and macOS up to 13.0 Ventura.
Does it come with the necessary drivers?
Yes, drivers are included, and the latest versions can also be downloaded from the StarTech.com website. It is Microsoft WHQL certified.
Can I install this in a small form factor PC case?
Yes, the adapter includes both standard and low-profile/half-height brackets to accommodate different PC case sizes.
What is the warranty period for this product?
The StarTech.com ICUSB232INT1 is backed by a 2-year warranty and free lifetime technical support.
Troubleshooting
Adapter not detected by the system.
Ensure the adapter is securely connected to the internal USB header and that the header is functional. Verify that the correct drivers are installed. Try a different USB header if available.
Serial device is not communicating.
Check the serial cable connection at both ends. Verify the COM port settings in your operating system and application match the device's requirements. Ensure the baud rate, data bits, and stop bits are configured correctly.
Installation issues, computer won't boot after connection.
Double-check the orientation and connection of the adapter to the motherboard header. Ensure no pins are bent or forced incorrectly. Consult your motherboard manual for the correct header pinout.
Driver installation fails.
Download the latest drivers from the official StarTech.com website. Temporarily disable any antivirus software during installation. Ensure your operating system is fully updated.
Pros and Cons
Pros
Provides an internal, clean solution for adding a serial port.
Uses a reputable FTDI chipset for reliability.
Includes brackets for both standard and low-profile cases.
Extensive operating system support.
Cost-effective way to connect legacy serial devices.
Cons
Requires an available internal USB motherboard header, not a standard external USB port.
Adds only one serial port.
Internal installation may be challenging for novice users.
May not be compatible with all motherboard layouts.
Setup, Compatibility & Care
Setup:
Power Down: Ensure your computer is completely powered off and unplugged.
Open Case: Open your computer's case.
Locate Header: Find an available 9-pin USB motherboard header (often labeled USB, F_USB, or similar).
Connect Adapter: Connect the IDC end of the ICUSB232INT1 to the motherboard header. Ensure the pin 1 indicator on the connector aligns with pin 1 on the header.
Mount Bracket: Secure the DB9 serial port bracket to an available slot opening on the back of your computer case using the provided screws. Route the cable from the internal connection to the bracket.
Close Case: Reassemble your computer case.
Install Drivers: Power on your computer. Install the drivers from the included CD or download them from the StarTech.com website. The adapter is Microsoft WHQL certified, which may allow for automatic driver installation on supported Windows versions.
Connect Device: Connect your RS232 serial device to the DB9 port.
Compatibility:
Operating Systems: Widely compatible with Windows 98SE through Windows 10 (including Pro, Enterprise, Home, and IOT Core editions), Windows Server 2003/2008 R2/2012/2012 R2/2016, and macOS versions up to 13.0 Ventura. Also supports Windows CE and Vista.
Motherboard Interface: Requires an available internal 9-pin USB motherboard header.
Care:
Keep the adapter and its connections free from dust and debris.
Avoid exposing the adapter to extreme temperatures or humidity outside its operating range.
Handle the internal components gently during installation.