This is a game controller that has had its Sega Saturn controller circuit board replaced with a Daisan Kagaku Kenkyujo Saturn Pad USB Conversion Board Ver. 5 (discontinued). When listing this item, I have confirmed that all buttons respond and function correctly in the Windows 10 environment through the Control Panel. For more detailed information about the circuit board, please refer to the Daisan Kagaku Kenkyujo website. The controller body is genuine and from the original period, so there may be minor scratches. Please examine the photos and consider your purchase. Shipping will be via Takkyubin Compact. SEGA HSS-0101 USB