It introduces an all new framework that further enhances clean interior and exterior design with intuitive and convenient installation. With the highest build quality in its class, featuring a full metal exterior and tempered glass side panel, the P300 is everything you need to build your perfect system. FULL-METAL MESH FRONT PANEL The P300A brings high quality and performance with a metal front panel mesh that covers the entire front of the chassis. UNCOMPROMISED AIRFLOW The Ultra-Fine Performance mesh breathes performance through the entire front of the chassis while keeping dust from entering the system. Get uncompromising airflow with the P300A Ultra-fine Performance mesh design.