Mach Desktop 4K is the first (and only) 4K dynamic motion wallpaper application. Mach Desktop 4K features 40+ stunning themes, with each theme featuring advanced 3D effects or breathtaking 4K Video, and the most cutting-edge and beautiful "Desklets" ever to grace a Desktop! 3D effects include but are not limited to: Light, Water, Fog, Smoke, Clouds, Fire, Snow, Stars, Galaxies, Quasars, even Black Holes, and more! Mach Desktop 4K also features a super efficient video player foundation that can play full 4K videos while consuming on average 5% CPU per display* Built on tested and proven technology, Mach Desktop 4K is the most advanced and beautiful application to ever live on your Desktop. Mach Desktop 4K works great on Retina (3K) displays as well!