Trilithic CP210x USB to UART Bridge Controller (COM3) Driver

The Trilithic CP210x USB to UART Bridge Controller (COM3) driver lets Windows recognize the USB-to-serial interface used by compatible Trilithic Seeker equipment. It provides a virtual COM port so supported software can communicate with the connected device, making it useful when setting up equipment or resolving a missing serial connection.

Key Features

• USB-to-UART communication: Enables data exchange between compatible Trilithic Seeker hardware and applications that use a serial connection.
• Virtual COM port support: Makes the interface available as a COM port in Windows Device Manager. Although this device is listed as COM3, Windows may assign a different number.
• Support for listed Windows versions: Intended for Windows 10, 8.1, 7, Vista, and XP when you choose a package that matches your operating system and architecture.
• Device recognition: Installing the appropriate driver can resolve recognition problems caused by a missing or incompatible driver.

How to Install Trilithic CP210x USB to UART Bridge Controller (COM3) Driver

1. Check your Windows version and system type. Confirm whether your installation is 32-bit or 64-bit before selecting a package. For Windows 10/11 systems, note that Windows 10 is listed as supported here; Windows 11 compatibility should be verified separately.
2. Choose a matching download. Before starting your Trilithic CP210x USB to UART Bridge Controller (COM3) driver download for Windows, check the package’s supported operating systems and device identifiers. Select the latest version compatible with your equipment rather than assuming the newest release supports every older system.
3. Download and extract the package. Use a trusted source for a free download, and extract any ZIP archive before running the installer. Follow any included instructions about when to connect the device.
4. Install the driver. Run the supplied setup program, if available. Alternatively, open Device Manager, locate the bridge controller or unidentified USB device, select Update driver, and browse to the extracted driver folder.
5. Verify the connection. Reconnect the equipment and check “Ports (COM & LPT)” in Device Manager. Set your application to the assigned COM port, and restart Windows if prompted.

Keep the driver updated when a compatible release addresses connection issues or supports a change to your system. Before an update, review compatibility notes—especially for older Windows versions—and retain a working installer in case you need to restore your previous setup.