Aerocool CS-1101 Specifications: Case Type Mid Tower Steel Thickness 0.4mm Motherboards ATX / Micro ATX / Mini ITX Case Dimensions 195 x 410 x 411mm (W x H x D, Overall) 5.25” Drive Bays 1 (Exposed) 3.5” Drive Bays 3 (Internal) 2.5” Drive Bays 1 (Internal) Expansion Slots 7 Slots Max length space available for PCI slots 350 mm / 375 mm (Without Front Fan) I/O Ports 2 x USB2.0 + 1 x USB3.0 + HD Audio & Mic. Height limit for CPU coolers Support Max. Height of 150 mm For CPU Cooler Air Cooling System Front : 1 x 120mm Fan (Optional) Side : 1 x 120mm Fan (Optional) Rear : 1 x 80 / 92mm Fan ( Included 1 x 80mm Black Fan) Net Weight 2.7 Kg / 3.3Kg (Gross Weight) Power Supply ATX PSU (Optional) COOLING SYSTEM CS-1101 [ Rear ] Fan 80 x 80 x 25 mm Rated voltage 12V Operating Voltage Range 10.8~13.2V Starting voltage 8V Power consumption 1.08W+-10%Max Rated current 0.09A+-10%Max Speed 1500+-10%RPM Air Flow (CFM) 22.2CFM Air Pressure 1.26mm-H2O Noise (dBA) 24.0dBA MTBF 20,000 hours