Gravis Xterminator Dual Control a USB product, places twice the power at the game player's fingertips by allowing the synchronizing of two moves to occur simultaneously with a proportional D-pad that functions as a second joystick. Gravis Xterminator Dual Control settings are customizable for enhanced game play. Players will be in command, no matter what the game, with up to 49 programmable functions, 360° of movement and a comfortable two-handed design for keyboard-free control.