"The Asus Lion Square heatsink is a cylindrical tower of nickel plated
aluminum fins wrapped around a 92mm PWM fan suspended in the center of it all. From the outside only the erie blue glow of the Sunon Maglev fan is visible, its noise is muffled to moderately audible levels. The edges of all fins are bent down about 10-15 degrees, with a portion of the edge punched out to improve airflow. It's a unique approach for certain."