The BAFO Technologies BF 810 USB to DB9 Adapter connects a computer’s USB port to equipment that uses an RS-232 serial connection. Its driver allows Windows to recognize the adapter as a COM port, so compatible software can communicate with devices such as serial modems, barcode scanners, and industrial controllers. When choosing a download for Windows 11, 10, 8, or 7, check that the package supports your Windows version and the adapter’s hardware revision.

Key Features

• USB-to-serial communication: Enables data transfer between your PC and compatible RS-232 equipment through the adapter’s DB9 connector.
• COM port access: Makes the adapter available to applications that communicate through a standard Windows serial port.
• Serial connection settings: Allows compatible applications or Windows port settings to configure parameters such as baud rate, parity, and flow control.
• Device Manager integration: Helps Windows identify the adapter and provides a place to check its assigned COM port, driver status, and any reported errors.

How to Install

1. Check your Windows installation. Open your system information to confirm whether you use Windows 11, 10, 8, or 7 and whether the system is 32-bit or 64-bit. Select a Bafo driver package that matches both your operating system and the BF 810 hardware revision.

1. Download and extract the driver. Save the package to a convenient folder. If it is compressed, extract its contents before starting installation, and review any included instructions for connection requirements.

1. Install the software. Run the supplied setup program and approve the administrator prompt if requested. If there is no installer, connect the adapter, locate it in Device Manager, choose “Update driver,” and browse to the extracted driver folder.

1. Connect and verify the adapter. Plug the BAFO Technologies BF 810 USB to DB9 Adapter into an available USB port. Once installation completes, check Device Manager for its COM port assignment, typically listed under “Ports (COM & LPT).” Restart Windows if prompted.

1. Configure your serial application. Select the assigned COM port and match the communication settings to those required by your connected equipment. If communication fails, check the serial cable, connector pinout, and flow-control settings before reinstalling the driver.

Common Issues and Fixes

• Driver install fails or shows Code 10/28: The BF-810 often conflicts with generic Prolific/PL2303 drivers. In Device Manager, uninstall the adapter and check “Delete the driver software,” reboot, then install the BAFO-supported driver as administrator. Use a signed driver compatible with your Windows version.
• Device not detected/no COM port: Try a different USB port and direct connection, not a hub. Check Device Manager for “Unknown device” or “USB Serial.” Reconnect the DB9 adapter and confirm a COM port appears; if not, replace the USB cable/adapter or test on another PC.
• Version conflicts/missing COM port after update: Remove hidden old serial devices and other PL2303 drivers, reboot, and reinstall only the BF-810 driver. Then assign a free COM port in Device Manager.