The Gravis Eliminator Aftershock Controller USB is a gamepad designed for PC gamers. This particular unit is being sold as UNTESTED, meaning that its functionality is unclear. It features vibration feedback and customizable buttons. Whether you're looking for a spare controller or a unique addition to your collection, this Gravis Eliminator Aftershock Controller USB could be a great find. However, please note that its condition is untested and therefore, no guarantees can be made.