ARCTIC K381-B Rev. 2 Ultra-Slim Compact Keyboard, Chiclets-Style Keys, 105-Key US Layout - Black Compact Space-Saving Ultra-Slim Design with Low Maintenance Chiclets-Style Keys 105-key US English Layout - Black Only 0.8" in Heights, 4.5" in Depth Minimize Dust Built-up & Easy to Clean Supports Windows 2000/ME/XP/Vista/7/8, Mac OS X. 2-Year Limited Warranty