TransAct Virtual Serial Port (COM9) Driver

The TransAct Virtual Serial Port (COM9) driver lets compatible Transact USB hardware communicate with Windows software through a virtual serial connection. It is intended for users setting up a device that appears as COM9, restoring a missing serial port, or troubleshooting an application that cannot connect to the hardware.

Key Features

• Virtual serial communication: Provides a COM-port interface so software using serial communication can work with compatible USB-connected hardware.
• Application connectivity: Allows compatible applications to access the assigned serial port when their connection settings match the device requirements.
• Windows support: Listed operating systems include Windows 10, 8.1, 7, Vista, and XP. Select a package that matches your Windows version and system architecture.
• Device identification: Helps Windows recognize the supported virtual serial interface, making it easier to locate the connection in Device Manager.

How to Install TransAct Virtual Serial Port (COM9) Driver

1. Check your device and Windows version. Connect the Transact hardware and open Device Manager. Check its hardware IDs under Properties > Details, and confirm whether your system uses 32-bit or 64-bit Windows.
2. Choose a matching package. Before starting a TransAct Virtual Serial Port (COM9) driver download for Windows, verify the package’s supported hardware and operating systems. Choose the latest version compatible with your device; a free download label alone does not establish compatibility or authenticity.
3. Install the driver. Extract the downloaded archive if necessary. Run the included installer, or use Device Manager’s Update driver option and browse to the extracted driver folder. Follow the package instructions.
4. Reconnect and verify. Restart Windows if prompted, then reconnect the device. Look under Ports (COM & LPT) in Device Manager and check for warning icons. Windows may assign a port number other than COM9.
5. Configure your application. Select the port shown in Device Manager and apply the communication settings specified by the hardware documentation. Test the connection before normal use.

Keep the driver updated when Transact provides a compatible release that addresses your issue or supports a system change. For Windows 10/11 setups, check support separately: Windows 10 is listed here, but Windows 11 compatibility is not confirmed. Before an update, retain the working installer so you can restore a known-good configuration if needed.