Be Quiet! BK021 Dark Rock 4 Heatsink & Fan, Intel & AMD Sockets, Silent Wings Fan, Fluid Dynamic   Dark Rock 4 offers an extreme cooling performance of 200W TDP and virtually inaudible operation. Perfect for overclocked systems and demanding workstations.     Virtually inaudible Silent Wings 135mm PWM fan     Achieves only 21.4dB(A) at maximum fan speed     Six high-performance copper heat pipes     Airflow-optimized, wave-contoured cooling fins     Easily installable black installation kit can be mounted from above     Supports an additional 120mm fan; clips are included in scope of delivery     Brushed aluminum top cover with diamond cut finish     3-year manufacturer’s warranty     German product conception, design and quality control  Virtually Inaudible Operation   Even at 100 PWM fan speed noise is an insignificant 21.4dB(A)     The Silent Wings 135mm PWM fan features nine airflow-optimized fan blades, a six-pole motor for less vibration and a durable fluid-dynamic bearing. Decoupled fan mounting with vibration-isolating elements on the heat sink. Extreme Cooling Power   Achieving an incredible performance-to-noise ratio     No compromise in silence and performance for overclocked systems and demanding graphics applications! Dark Rock 4 provides an impressive rating of 200W TDP and achieves low temperatures even during periods of peak CPU performance. Highly Advanced Design   The core features that result in high-end cooling     Dark Rock 4 is equipped with six advanced technology 6mm copper heat pipes that maximize the heat conductance. Airflow-optimized, wave-contoured cooling fins with small dots on their surfaces increase the air circulation. The special black coating with ceramic particles makes a perfect transfer of heat possible. Single-Tower Layout   Powerful cooling for your components     The compact single-tower design achieves excellent heat dissipation in small spaces.  One fan is pre-installed. It is also possible to add another 120mm fan for even better cooling. User-Friendly Elegance   Stylish and easy to install     The mounting kit for the Dark Rock 4 cooler is completely black, perfectly matching the black design of the cooler itself. You can conveniently install the cooler on the motherboard from above. The brushed aluminum top cover with its diamond cut finish adds a touch of elegance to this high-end cooler. Specification Type: Heatsink and Fan AMD/Intel: Combo Compatibility: Intel: LGA 1200 / 1150 / 1151 / 1155 / 1156 / 1366 / 2011(-3) Square ILM / 2066 AMD: AM2( ) / AM3( ) / AM4 / FM1 / FM2( ) TDP: 200W Fan Connector(s): 4-pin #Hide#LED Lightin No Colour: Black Material: Fin material: Aluminum Base material: Copper CPU contact surface: CNC machined Weight: 0.92 kg Fan Dimensions: 135 x 135 x 22 mm Dimensions: 159.4 x 136 x 96.3 mm Fan Controller: PWM Rotation Speed: 1400 RPM (@ 100 PWM) Fan Bearin Fluid Dynamic Bearing Noise level: 10.5 / 15.6 / 21.4 dB(A) Power: Input: 1.32W Additional Features: See Overview MTBF: \"300,000 hours (approx.)\" Package Type: Retail Package Weight: 1.4700 kg Warranty: 3 Years #Hide#115x Sockets: Supports Sockets 115x #Hide#2066 Socket: Supports Socket 2066 #Hide#2011(-3) Socket: Supports Socket 2011(-3) #Hide#1200 Socket: Supports Socket 1200 #Hide#1366 Socket: Supports Socket 1366 #Hide# AM4 Socket: Supports Socket AM4 #Hide# AM3( ) Socket: Supports Socket AM3( ) #Hide# AM2( ) Socket: Supports Socket AM2( ) #Hide# FM2( ) Socket: Supports Socket FM2( ) #Hide#FM1 Socket: Supports Socket FM1