All NewTower Industrial Server Chassis 17.5" depth, ideal for space-sensitive industrial applications YY-R445 equipped with anti-vibration cage and dust-proof filter, is the multi-purpose PC server case, support full length add-on-cards at the shortened depth. In small footprint, it shows a great possibility for no mater entry or advanced application. It has total 5 different hardware rack configuration. It can be used for different tasks and environment. It is the best choice for users who're looking for a universal PC/ server solution.