The FM801 PCI Joystick Controller is a hardware controller used to connect joysticks, gamepads, or other gaming peripherals to your computer via the PCI slot. It was commonly used in the past to enable the use of analog game controllers on PCs, particularly for gaming or simulation software. The FM801 controller was manufactured by ForteMedia, and it was widely used in older systems, though it's less common on modern PCs.

The FM801 PCI Joystick Controller Windows driver is a software package that allows the Windows operating system to interface with this hardware and recognize connected joystick devices. Without the correct driver, the joystick might not work, or Windows may not recognize it properly.