(The new model of gaming keyboard OK015 offers: - Easy and silent typing - Convenieng keyboard layout with big enter and big back-space - Colour indication of the most frequent gaming keys (QWERTY and arrows) - Fast access to multimedia functions thanks to 8 extra keys - Space saving and compact design - Low profile keys - USB connection Compatibility: all Windows OS from XP including 8.1, APPLE OS X, LINUX 2.4+).