Features: | The air vent in the front provides superior ventilation | The front I/O panel provides easy access for users | Side panel security lock for higher safety to your components | Supports an optional 80/90/120mm fan on the side panel to cool the graphics cards | The 120mm fan in the rear helps to keep the constant cooling | Model: 310C | P/N: RC-310C-KKN3-U3 | Color: Black | Materials: Steel body, ABS Plastic, Mesh Front bezel | Dimensions: 477 x 190 x 446 mm | M/B Type: microATX, ATX | 5.25" Drive Bays: 3 (exposed) | 3.5" Drive Bays: 1 (exposed), 5 (hidden) | I/O Panel: USB 3.0 x 1, USB 2.0 x 1, Mic x 1, Audio x 1 (HD audio) | Expansion Slots: 7 | Fan Support: | Front: 120mm fan x 1 (optional) | Rear: 120mm fan x 1 (installed), 80/90 mm fan x 1 (optional) | Side: 80/90/120mm fan x 1 (optional) | Power Supply Type: Standard ATX PS2 | Maximum Compatibility: | VGA Card Length: 283mm | CPU Cooler Height: 158mm