The cases of the Eclipse P400 Air series are aimed at beginners and also offer many interesting features for experienced PC enthusiasts, such as the optimized airflow compared to its predecessor. The front of the Eclipse P400 Air is made of a metal plate with a fine-meshed grille, which allows an excellent airflow on the one hand and keeps the inside of the case free of dust on the other. The advantage of this solution compared to the conventional combination of mesh and dust filter is obvious: the air can be sucked in much more easily by the fans behind it. In addition, the sturdy mesh is also visually appealing, especially when the housing is illuminated from the inside and shines through.

A further optical highlight are the three pre-installed RGB LED fans, whose lighting is connected to an integrated controller and can be controlled via two switches on the I/O panel. Alternatively, the lighting can also be adjusted using compatible motherboards such as ASUS, ASRock, Gigabyte, MSI or the Chroma software from Razer. A further highlight is the modern side window made of tempered and tinted real glass, which provides a breathtaking view of the installed hardware and gives the case a particularly elegant appearance.