Dark Rock Pro TR4 offers immense cooling performance of 250W TDP and virtually inaudible operation. Excellent for high-end systems and demanding workstations.Features:- Designed for AMD sTRX4 / TR4 only- Two Silent Wings PWM fans feature advanced fluid-dynamic bearings and smooth 6-pole motors- Funnel-shaped frame of the front Silent Wings 3 fan provides extremely high air pressure- Achieves only 24.3dB(A) at maximum fan speed - Seven high-performance copper heat pipes provide maximal heat conductance - Wave-contoured cooling fins for increased air circulation - Cutouts on the cooling fins enhance the RAM compatibility - Special black coating with ceramic particles enables perfect heat transfer- Supports an additional 120mm fan; clips are included in scope of delivery - Easily installable black installation kit can be mounted from above - Elegant, brushed aluminum top cover with diamond cut finish- 3-year manufacturers warranty - German product conception, design and quality controlSpecificationGeneral:- Overall dimensions without mounting material (L x W x H), (mm): 162.8 x 136 x 145.7- Total weight (kg): 1,18- TDP (W): 250- Socket compatibility AMD: sTRX4 / TR4- Fan model, number: 1x Silent Wings 3 120mm PWM, 1x Silent Wings 135mm PWM- Overall noise level (dB(A)) @ 50/75/100% (rpm): 12.8 / 17.9 / 24.3Heatsink:- Dimensions (L x W x H), (mm): 162.8 x 136 x 120.7- Number of fins: 90- Fin material: Aluminum- Base material: Copper- CPU contact surface: CNC machined- Heatpipe number / Diameter (mm): 7 / 6- Surface treatment: Aluminum / black ceramic spray paintedFans- Fan dimensions (mm): 135 x 135 x 22 / 120 x 120 x 25- Speed @ 100% PWM (rpm): 1,200 / 1,500- Bearing technology: Fluid Dynamic Bearing- Motor technology: 6-pole fan motor- Rated voltage (V): 12- Input current (A): 0.08 / 0.08- Input power (W): 0.96 / 0.96- Connector: 4-pin PWM- Cable length (mm): 220 / 220- Lifespan (h / 25C): 300,000