Brother MFC-640CW USB Remote Setup Port (COM3) Driver

The Brother MFC-640CW USB Remote Setup Port (COM3) driver helps Windows recognize the USB communication port used by Brother’s Remote Setup software to configure the MFC-640CW multifunction device. It is intended for users who need to set up the device over USB or resolve a missing or unrecognized Remote Setup port in Device Manager. Although this entry may appear under a Camera category, it relates to the device’s setup interface rather than a standalone camera.

Key Features

• Enables port recognition: Helps Windows identify the USB Remote Setup interface so compatible Brother software can communicate with the device.
• Supports device configuration: Provides the connection needed for supported Remote Setup functions; a compatible Brother utility may also be required.
• Helps resolve driver issues: Installing the appropriate package may correct a missing driver or recognition problem affecting this interface.
• Distinguishes the setup connection: This port is separate from the device’s printing and scanning functions, which may require additional drivers.

How to Install Brother MFC-640CW USB Remote Setup Port (COM3) Driver

1. Check your Windows version and system type. The listed operating systems are Windows 10, 8.1, 7, Vista, and XP. Confirm that the selected package supports your specific version and, where applicable, 32-bit or 64-bit architecture.
2. Select a compatible package. Before starting your Brother MFC-640CW USB Remote Setup Port (COM3) driver download for Windows, review the package details. Choose the latest version compatible with your system rather than assuming the newest package supports every Windows release.
3. Download and prepare the installer. Use a trusted Brother source for a free download when available. Extract the files if necessary, close any open Brother utilities, and follow the package instructions about when to connect the USB cable.
4. Install the driver. Run the supplied installer and follow its prompts. If the package contains only driver files, use Device Manager’s Update driver option and browse to the extracted folder.
5. Verify recognition. Restart Windows if requested, then check Device Manager for errors and test the compatible Remote Setup utility. Windows may assign a COM number other than COM3.

Keep the driver updated when a compatible update addresses a connection issue or improves reliability. For Windows 10/11 systems, verify support for each operating system separately: Windows 11 is not included in the listed support information, so do not assume compatibility. If your current setup works reliably, review the release notes before replacing its driver.

Common Issues and Fixes

• Install fails/rolls back: Disconnect USB, uninstall old Brother MFC-640CW and Remote Setup drivers, reboot, then run the installer as administrator. Use the correct 32/64-bit package for your Windows version.
• Device not detected/no COM3: Connect directly to a USB 2.0 port, not a hub. Power on the MFC-640CW, reconnect, and check Device Manager > Ports (COM & LPT) for “Brother MFC-640CW USB Remote Setup Port.” Reinstall the Brother USB composite driver if absent.
• COM3 conflict/Remote Setup won’t connect: Another device may own COM3. In Device Manager, open the Brother port > Properties > Port Settings > Advanced, select a free COM number, then choose that port in Remote Setup. Remove duplicate Brother USB ports.