Features: The double tower structure effectively increases the heat dissipation area, improves the heat dissipation effect, and ensures that high performances CPUs maintain low temperatures during operations. Equipped with 6 6mm diameter copper heat pipes, it has excellent thermal conductivity and quickly transfers heat from the CPU to the surfaces of the heat sink, greatly improving heat dissipation efficiency. Supports PWM (Pulse Width Modulation) technology, and the fan speed is intelligently adjusted according to the CPU temperature. When the load is light, the fan speed is reduced to achieve silents effect and avoid unnecessary noise. Builts in colorful LED lights provide multiple color variations to enhanceds the appearance of the chassis and meet players personalizeds appearances needs. Adopting efficient and silents fan design, it can maintain low noise level even under high load conditions, for users who require quiet environment. for LGA 775/115X/1200/17XX and 754/AM2/2+/AM3/AM3+/AM4/FM1/FM2+series processors, ensuring compatibility with most mainstream platforms. Specifications: Materials: Copper, aluminum, ABS Product Size: 135x125x98mm/5.31x4.92x3.85inch Product Weight: 705g Power supply interfaces: 4Pin rateds voltages: DC12V Bearing Type: Hydraulic Bearing Package Includes: 1Set CPU Air coolers note: Please allow 0-1cm error due to manual measurement. make sure you not mind before bid. Due to the differences between different monitors, the Pictures may not reflect the actual of the item.