Arctic Cooling's Alpine 64 Pro Ultra offers outstanding price/performance ratio for mainstream users. It includes an Ultra quiet 92mm PWM fan with low noise impeller with an Optimised heatsink efficient heat dissipation. This Patented fan holder eliminates the buzzing sounds with its Patented vibration absorption. The Alpine 64 Pro is as quiet as 0.4 Sone at full speed (2,000 rpm). The Alpine 64 Pro can be installed within seconds. Remove the standard cooler, place the Alpine 64 Pro on the CPU, lock two lugs with the retention module, and you are ready to enjoy the quietness brought by this cooler. Pre-applied MX-2 with Easy installation. Rating of 12V and Max Cooling capacity of 90 Watts.