ARCTIC Freezer i32 - CPU Cooler with 120 mm PWM Fan for Intel with New Fan Controller Made in Germany and PWM Sharing Technology (PST) GERMAN ENGINEERED: The Freezer i32 is a CPU cooler with a 120mm fan. It is more than 30% cooler than Hyper 212X at a low noise level of 0.3 sone. The perfect and affordable solution for CPU cooling. SEMI PASSIVE COOLING: A F12 PWM fan that starts up at a higher load (40% PWM) because of its installed fan controller. The CPU can be cooled completely passively during typical Windows operation. IMPROVED HEAT DISSIPATION: Off-Centered heat pipes dispense the heat better and the layout of 49 alu-fins creates micro vortices that boots the airflow and circulate it around the heat pipes. ENHANCED BEARING AND OPTIMAL COMPATIBILITY: Fluid Dynamic Bearing ensures less heat development and less bearing noise for longer usage. Compatible with current Intel sockets 2011,1155,1150,1156,1151 EASY INSTALLATION & TRANSPORT SAFE: The screw-mount-system on a back-plate and a significantly lower weight makes it absolutely transport safe and ensures a hassle-free installation within seconds.