Antec A400 RGB Processor Cooler

4-PIN Connector PWM Silent Fan - Automatically controls the fan speed according to the temperature of CPU efficiently and decreases fan noise. Technical Design of Direct-Touched Heat Pipes - Attach the aluminum cold plate to the surface of a CPU directly, and it can constantly reduce the heat by passing the thermal energy to every fin. 4 Pure Copper Heat Pipes: High thermal conductivity can take the heat out of the CPU quickly. An add-on ANTEC Golden Grease with professional formula brings better viscosity and heat-transferring efficiency, making your CPU way cooler!