Lunaris PS/2 connector numeric keypad Compatible with Windows 98 Equipped with a PS/2 mouse board. You can use the numeric keypad and mouse simultaneously (please check the compatible models). Although unused, the surface of the box is not clean, so it is listed as "Has scratches and dirt." This item has been stored at home. Please refer to the second and fifth images for usage instructions. I hope it will be suitable for you. There is a warranty on the back of the box, but it has already expired. Thank you for your understanding.