Be Quiet! Bk021 Dark Rock 4 - Cpu Cooler - 200W Tdp Intel: Lga 1150 / 1151 / 1155 / 1156 / 1366 /

Description :

• Mfr Part Number: BK021
• Features:
  • 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
  • German product conception, design and quality control 
• Socket Type:
  • Intel: LGA 1150 / 1151 / 1155 / 1156 / 1366 / 2011(-3) Square ILM / 2066
  • AMD: Socket AM2(+) / AM3(+) / AM4 / FM1 / FM2(+)
• Fan:
  • Model: Silent Wings 135mm PWM
  • Speed: 1400 RPM @ 100% PWM
  • Noise Level: 50% RPM - 10.5 dBA, 75% RPM - 15.6 dBA, 100% RPM - 21.4 dBA
  • Rated Voltage: 12 V
  • Input Current: 0.11 A
  • Input Power: 1.32 W
  • Bearing Type: Fluid Dynamic Bearing
  • Motor: 6-pole Fan Motor
  • Connector: 4 Pin PWM
  • Cable Length: 220 mm
  • Life Expectancy: 300,000 hours @ 25C
  • Dimensions: 135.0 x 135.0 x 22.0 mm
• Heatsink:
  • Heat Pipes Number / Diameter: 6x 6 mm
  • Material: Copper Base / Aluminum Fins
  • Number of Fins: 51
    
  • CPU Contact Surface: CNC machined
  • Surface Treatment: Aluminum / black ceramic spray painted
  • Dimensions(W x L x H): 136.0 x 159.4 x 74.3 mm
• Thermal Design Power: 200 W
• Dimensions (WxLxH): 136.0 x 159.4 x 96.3 mm (Overall) (w/o mounting material)
• Weight: 0.92 kg