iStarUSA E Storm Rugged E-306V2-L No Power Supply 3U Rackmount Server Chassis (Black) Case Type: 3U Rackmount Material: Main Chassis - Zinc-Coated Steel SECC 1.2mm M/B Type: EATX, ATX, MicroATX; 12.0 x13.0 inch Drive Bays: 3x 3.5", 6x 5.25" Expansion Slots: 7 Cooling System: 4x 80mm Fans Front I/O Panel: 2x USB 2.0 Ports