Form Factor: Tower Max Mainboard Size: SSI EEB 3.0 Supported Motherboards: SSI EEB 3.0 Max Supported Dimensions: 12 in x 12.99 in Internal Bays Qty: 4 Front Accessible Bays Qty: 3 Product Material: Metal Cooling System: On drive cage: 80 x 80 x 25 mm fan x 1 ¦ Rear: 120 x 120 x 25 mm fan x 1 System Cabinet Features: Vibration-absorbing drive cage, Kensington lock support, security key lock, Intrusion Switch, metal thickness 0.8mm, HDD status indicator, LAN activity indicator, power status indicator, reset button, power button, system alarm indicator, alarm mute button