Aerocool Qs-182 Specifications: Case Type Micro ATX Case Steel Thickness 0.5mm Motherboards Micro ATX / Mini ITX Chassis Dimensions 355 x 335 x 170mm (W x H x D, overall) 5.25" Drive Bays 1 (Exposed) 3.5" Drive Bays 1 (Exposed or Hidden For 3.5" HDD) Hard Disk Drive Bays 2 x 2.5" or 1 x 3.5" + 1 x 2.5" (Side Hanging Plate) 2.5" Drive Bays 1 (Bottom) Expansion Slots 4 Slots Max length space available for PCI slots 320mm I/O Ports 1 x USB3.0, 2 x USB2.0 , HD Audio + MIC Height limit for CPU coolers Support Max. Height Of 150mm For CPU Cooler Air Cooling System Front : 120mm Fan x1 Left : 120mm Fan x1 Rear : 80mm Fan x1 (1 x 80mm Black Fan Included ) Net Weight 2.7Kg Power Supply Standard ATX PS2 (Optional) COOLING SYSTEM Qs-182 [ Rear ] Fan 80 x 80 x 25 mm Rated voltage 12V Operating Voltage Range 10.8~13.2V Starting voltage 7V Rated current 0.14A+-10%Max Power consumption 2.16W+-10%Max Speed 1800+-10%RPM Air Flow (CFM) 28.4CFM Air Pressure 1.58mm-H2O Noise (dBA) 21.6dBA MTBF 30,000 hours