5" 3 Bay Front Cooler: Allows external cold air to be trapped from the front of the 5" bay to efficiently cool the inside of the case. Please note that the hard drive mount for 5" bay is not included. If you want to use it as an HDD cooler, please prepare a separate HDD mounter. Equipped with a 4.7 inch (120 mm) fan [X-FAN: RDL1225SL (12SP)] that combines cooling and quietness. : Adopts the X-FAN brand of reliable quality. The bearings have hollow bearings (improved fluid bearings) for low noise and low vibration. Metal Front Panel: The front panel is made of steel, giving it the rigidity of the metal and unique sense of gravity. Filter: The intake vents are equipped with a filter to reduce dust from entering the case. Washable and easy to clean. Black specifications: Best match when the case is painted black. Made in Japan. Consistent production by Nagao factory. Except cooling fans. : All products are carefully finished by hand with the reminder of the "soul of origin".