CH PRODUCTS Throttle Quadrant Discover Bundle (300133DIS) Configurable as Twin or Multi Engine aircrafts with the quick switching of knobs 6 Axes, 12 buttons for 176 button positions with PC programming software Six physical detents, 6 bi-directional flip switch buttons and X, Y, Z, R, U and V axes for engine control Driverless USB plug-and-play installation for PC and Mac Easy installation; fits most desktops with adjustable clamping mechanism Compatible with Windows 98, ME, 200, XP, Vista, 7 and Mac OSX Two year factory warranty and award-winning support Includes two FREE popular software titles for Microsoft FSX and FS2004 (PC compatible only)