The Nexus BeamAir is a fan adapter you can put on your case fan to make it more powerful. Simple, but very effective! The airflow of a casefan is, in most situations, scattered arround in an angle of almost 180° coming from the fan. The BeamAir guides the airflow coming from your fan, into a straight beam of air without causing obstruction or turbulance. The airflow is more powerfull; it has a greater reach and hence much more effective and efficient. The BeamAir is made from plastic material in a patent pending shape, design and function.