Copper base with 4 heat pipes provide excellent heat dissipation, efficiently transfer heat to the fins and maintain the temperature for high-performance computing. The Arctic Square incorporated with "Ladder-Shaped" fins on both sides to enlarge heat exchange area for effective cooling and remain its compact design as well. PWM function automatically adjusts fan speed according to CPU temperature and delivers a quiet cooling operation. Universal retention module designed for Intel LGA775 and AMD K8 939/940/AM2 platforms support. The fan positioned inside the frame for maximum airflow and VRM shield guides cool air to critical components around the CPU for stable operation.