This N64 Nintendo 64 Gameshark Pro has been thoroughly tested and is ready for use. It is a black unit that comes with a game cartridge only, without the box or manual. This unit is perfect for those who want to enhance their gaming experience on the Nintendo 64 platform. It is made by Nintendo and is a unit type that comes with one unit quantity. This model is compatible with the Nintendo 64 platform and has not been modified. It is a great addition to any gaming setup and will provide hours of entertainment.