CH Products Pro Throttle USB Three axis and 24 buttons (3 pushbuttons, 1 mode selector, 1 4-way & 1 8-way switch) X and Y axis on miniature joystick and Z axis on accurate throttle sliding motion Total of 176 programmable functions with Control Manager software (included) VERY IMPORTANT !!! Before installing the newest version of Control Manager, be sure to uninstall any previous versions from your computer. Also, be sure that any anti-virus software is disabled. Three color mode indicator LED's on base. Please Note: Kindly refer the User Manual before use. Compatible with Windows 98, 2000, XP, Vista, 7, 8, 10 and Mac OSX