Be Quiet! BK022 Dark Rock Pro4 Heatsink & Fan, Intel & AMD Sockets, Dual Silent Wings Fans, Fluid Dynamic Dark Rock Pro 4 offers an immense cooling performance of 250W TDP and virtually inaudible operation. Excellent for overclocked systems and demanding workstations.     Two virtually inaudible Silent Wings PWM fans     Funnel-shaped frame of the front fan for high air pressure     Achieves only 24.3dB(A) at maximum fan speed     Seven high-performance copper heat pipes     Airflow-optimized cooling fins; cutouts enhance the RAM compatibility     Easily installable black installation kit can be mounted from above     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 24.3dB(A)     The two Silent Wings PWM fans feature advanced fluid-dynamic bearings, smooth six-pole motors and airflow-optimized fan blades. The front Silent Wings 3 fan provides extremely high air pressure, thanks to a funnel-shaped air inlet in the frame. Decoupled fan mounting with vibration-isolating elements on the heat sink. Immense Cooling Power   Achieving an incredible performance-to-noise ratio     No compromise in silence and performance for overclocked systems and demanding graphics applications! Dark Rock Pro 4 provides an impressive rating of 250W 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 Pro 4 is equipped with seven 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. Double-Tower Layout   Powerful cooling for your components     Dark Rock Pro 4 contains two aluminum heat sinks. The cutouts provided enhance its RAM compatibility. Two fans are 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 Pro 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: 250 W Fan Connector(s): 4-pin LED Lightin No Colour: Black Material: Fin: Aluminium Base: Copper CPU contact surface: CNC machined Weight: 1.13 kg Fan Dimensions: 135 x 135 x 22 / 120 x 120 x 25 mm Dimensions: 162.8 x 136 x 145.7 mm Fan Controller: PWM Rotation Speed: \"1,200 / 1,500 RPM\" Fan Bearin Fluid Dynamic Bearing Noise level: 12.8 / 17.9 / 24.3 dB(A) Power: Rated voltage (V): 12 Input current (A): 0.08 / 0.08 Input power (W): 0.96 / 0.96 MTBF: \"300,000 hours (approx.)\" Package Type: Retail Package Weight: 1.6800 kg Warranty: 3 Years 115x Sockets: Supports Sockets 115x 2066 Socket: Supports Socket 2066 2011(-3) Socket: Supports Socket 2011(-3) 1200 Socket: Supports Socket 1200 1366 Socket: Supports Socket 1366 AM4 Socket: Supports Socket AM4 AM3( ) Socket: Supports Socket AM3( ) AM2( ) Socket: Supports Socket AM2( ) FM2( ) Socket: Supports Socket FM2( ) FM1 Socket: Supports Socket FM1