DMT USB to UART Bridge Controller (COM4) Driver

The DMT USB to UART Bridge Controller (COM4) driver enables Windows to communicate with the Pirelli USB-to-serial device through a virtual COM port. It is needed when compatible software cannot access the controller, Windows reports a missing driver, or the device appears with a warning icon in Device Manager.

Key Features

• USB-to-UART communication: Provides the connection between Windows applications and compatible hardware that uses a UART serial interface.
• Virtual COM port access: Allows serial communication software to address the controller through an assigned port, such as COM4.
• Device recognition: Helps Windows identify the controller and load the appropriate driver rather than leaving it listed as an unknown device.
• Legacy Windows support: Intended for Windows 10, 8.1, 7, Vista, and XP, subject to the compatibility requirements of the individual driver package.

How to Install DMT USB to UART Bridge Controller (COM4) Driver

1. Check your Windows configuration. Confirm your Windows version and whether it uses a 32-bit or 64-bit architecture. In Device Manager, open the controller’s properties and check its hardware IDs to help identify a matching package.
2. Select a compatible package. Before starting your DMT USB to UART Bridge Controller (COM4) driver download for Windows, verify that the package supports your hardware and operating system. Choose the latest version confirmed compatible with your device, not simply the newest file available. For Windows 10/11 systems, note that Windows 11 support is not confirmed by the supplied compatibility list.
3. Download and extract the files. Use a trusted source for a free download, scan the package with Windows Security or another antivirus tool, and extract it if it arrives as an archive.
4. Install the driver. Run the supplied installer if available. Otherwise, right-click the controller in Device Manager, select Update driver, choose the option to browse your computer, and point Windows to the extracted driver folder.
5. Verify the connection. Restart if prompted, then check under Ports (COM & LPT) in Device Manager. Confirm that the device has no warning icon and select its assigned COM port in your application; the port number may differ from COM4.

Keep the driver updated when a verified update addresses connection problems or supports a Windows change. If the controller already works reliably, review compatibility details before replacing the installed driver, and retain a working copy in case you need to roll back.