. DARK ROCK TFOne of the hardest things to do in a compact PC is quietly cool a high-performance CPU even in extreme overclocking conditions. be quiet!s top-flow cooler Dark Rock TF offers a solution to this challenge. True Cooling Beast Featuring dual heat sinks with anti-vibration rubber inserts six 6mm heat pipes with aluminium caps two virtually inaudible Silent Wings 135mm PWM fans (max. 26.7d B (A)) with six-pole motor & fluid-dynamic bearing & 220W TDP cooling performance Dark Rock TF is a true cooling beast. Double-Tower for Double Power Thanks to its double-tower layout this cooler is a true cooling marvel with 220W TDP – just perfect for the extreme conditions found in the overclocked CPUs of compact gaming PCs. Powerful Cooling for your Components Dark Rock TF contains two aluminum heat sinks. Two fans are pre-installed but a single fan assembly is also possible offering further space savings & even quieter operation. Cooled by Silent Wings Technology The cooler is equipped with two Silent Wings 135mm PWM fans. They feature advanced fluid-dynamic bearings smooth six-pole motors & nine airflow-optimized fan blades. The noise is a meager 26.7d B (A) even with 100% PWM fan speed. The Centrepiece of Every CPU Cooler Dark Rock TF has six high-performance 6mm heat pipes with aluminium caps. They carry heat to the optimum location on the cooling fins. The special black coating with ceramic particles makes a perfect transfer of heat possible. Anti-vibration rubber inserts on the cooling fins of the heat sink further dampen noise. Space-Saving Design with Great Effect The space-saving topflow design provides ideal cooling not only for the CPU but also for surrounding components. It can quietly cool a high-performance overclocked CPU in a confined space. .