Positive air pressure design for excellent cooling/quietness and dust-prevention Support expansion cards up to 12.2 inches (309mm) Support ATX motherboards Quick access filters included Incredible 358mm depth to fit comfortably inside home theater cabinet Drive cages with multi-purpose mounts eliminate need for adapters The Grandia GD09 is a culmination of SilverStones decade-long experience in HTPC case design and manufacturing into a product that every PC enthusiast can enjoy. The incredible efficiency in which it utilizes all available space results in a case that is close in size externally to Micro-ATX based GD04 and GD05, yet capable of fitting most important full size standard components including wider ATX motherboards (SSI-CEB) such as ROG or other gaming-centric models. All drive cages have been designed similarly to those from the popular ML03 case to provide maximum flexibility in drive configuration without the need for additional adapters. For cooling, all positive press