CONRAD USB to UART Bridge Controller (COM4) Driver

The CONRAD USB to UART Bridge Controller (COM4) driver enables Windows to communicate with compatible USB-to-UART hardware from Conrad Electronic through a virtual serial port. It is needed when connecting serial equipment, configuring embedded devices, or using software that requires a COM port to exchange data with your hardware.

Key Features

• USB-to-serial communication: Provides the interface needed for applications to send and receive UART data through a compatible USB connection.
• Virtual COM port access: Lets serial terminal programs and device configuration tools access the controller as a Windows COM port.
• Legacy Windows support: Listed supported systems include Windows 10, 8.1, 7, Vista, and XP; select a package that matches your operating system and architecture.
• Device recognition: Helps Windows identify the bridge controller correctly when a suitable driver is missing or needs to be reinstalled.

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

1. Check your system and hardware. Confirm your Windows version and whether it is 32-bit or 64-bit. In Device Manager, check the controller’s hardware IDs if you need to verify which driver package matches.
2. Choose a compatible package. Before starting your CONRAD USB to UART Bridge Controller (COM4) driver download for Windows, review the package’s supported devices and operating systems. For Windows 10/11 users, note that Windows 10 is listed as supported, but Windows 11 compatibility is not confirmed here.
3. Download and extract the files. Use a trusted free download source, preferably an official vendor resource. Choose the latest version that explicitly supports your controller and Windows release.
4. Install the driver. Run the supplied installer and follow its instructions. If the package contains only driver files, open Device Manager, right-click the controller, select Update driver, and browse to the extracted folder.
5. Verify the connection. Restart if prompted, then check Device Manager under Ports (COM & LPT). Select the assigned COM port in your serial application and match its communication settings to your equipment. Windows may assign a port number other than COM4.

Keep the driver updated when a compatible update addresses connection problems, improves reliability, or supports a system change. Check compatibility before replacing a working driver, especially on older Windows versions, and retain the previous installer in case you need to roll back.