The FTDI FT245R USB FIFO driver allows Windows to communicate with hardware built around FTDI’s USB-to-parallel FIFO interface. Although listed in the Printer category, the FT245R is an interface chip rather than a standalone printer, so its driver supports the USB connection—not printer-specific functions such as page layout or print quality.

Key Features

• USB communication support: Enables compatible applications to exchange data with FT245R-based hardware through its FIFO interface.
• FTDI driver options: Depending on the hardware and software configuration, applications may use a Virtual COM Port (VCP) interface or FTDI’s D2XX direct-access interface.
• Windows compatibility: Driver packages are available for Windows 11, 10, 8, and 7. Select a release that explicitly supports your Windows version and system architecture.
• Device recognition: Helps Windows identify the connected FTDI interface correctly, replacing an unknown-device entry when a missing driver is the cause.

How to Install

1. Check your system and hardware requirements. Confirm your Windows version and system architecture in Settings or System Information. If the FT245R USB FIFO is built into a printer or another product, check the equipment manufacturer’s instructions for any required driver version or configuration.

1. Download a compatible driver package. Choose an FTDI package that supports your operating system. Older Windows installations may require a different release from Windows 11, so verify compatibility before proceeding.

1. Run the installer or extract the files. If the package includes a setup program, launch it and follow the prompts, allowing administrator access when requested. For a ZIP package, extract its contents to an accessible folder.

1. Connect the hardware and complete detection. Use a suitable USB cable and ensure the equipment is powered on. If Windows does not install the driver automatically, open Device Manager, locate the unrecognized interface, select Update driver, and browse to the extracted driver folder.

1. Verify the connection in your application. Check Device Manager for warning icons, then open the software intended for your hardware. Select the assigned COM port if the application uses VCP, or follow its instructions for D2XX communication. Restart Windows if prompted.

If the device remains undetected, try another USB port or cable before reinstalling. Printer equipment may also need a separate manufacturer-provided printer driver or application beyond the FTDI USB interface driver.

Common Issues and Fixes

• Install fails or device shows “Unknown Device”: Uninstall existing FTDI VCP/D2XX packages, reboot, then install the current FTDI CDM/D2XX driver as administrator. Check Device Manager for VID 0403/PID 6001; a bad USB cable, hub, or port can also block enumeration.
• FT245R not detected by application: Confirm the correct D2XX driver is bound, not a generic serial port. Close other programs holding the handle and test on a rear USB 2.0 port. Verify EEPROM settings have not disabled the FIFO interface.
• Version conflicts after updating: Remove older FTDI drivers with FTDI’s uninstaller or Device Manager, delete leftover driver packages, and reinstall one matching CDM/D2XX version. Mixing VCP and D2XX builds can cause open/read failures.