The cases of the Eclipse P400 Air series are aimed at beginners and also offer many interesting features for experienced PC enthusiasts, such as optimized airflow compared to its predecessor. The front of the Eclipse P400 Air is made of a metal plate with a fine mesh grid, which not only allows for excellent airflow but also keeps the interior of the case dust-free. The advantage of this solution compared to the previously common combination of mesh and dust filter is clear: air can be drawn in much more freely by the fans installed behind it. Additionally, the sturdy mesh also looks impressive, especially when the interior of the case is illuminated and shines through. A highlight is the modern side window made of tempered and tinted real glass, which provides a stunning view of the installed hardware and gives the case a particularly elegant appearance. Furthermore, there are two pre-installed 120mm fans connected to an integrated controller, and their speed can be adjusted in three levels via a switch on the I/O panel.