Feature: 1. High Efficiency: This water cooling radiator efficiently pull heat away from cycling coolant thus achieving maximum heat dissipation at both low and high airflow operation. 2. Multi Purpose: This heat exchanger radiator is suitable for computer CPU, industrial variable frequency drives, VGA water cooling, laser head cooling, and air conditioning evaporator. 3. Aluminium Fins: This heat exchanger radiator adopts aluminium fins, using the black oxidation paint to increase the thermal efficiency. 4. 18 Pipes: This PC aluminium radiator has 18 pipes and adopts G1/4 threads, recommended fan installation size is 4.7x4.7x1.0in. 5. Easy Installation: The CPU water cooling radiator comes with 24 screws that ensure easy installation. Specification: Item Type: Water Cooling Radiator Material: Aluminium Alloy Function: Heat Dissipation Scope: Computer Hole Position: 2, G1/4 Thread Applicable Fan: 12 x 12 x 2.5cm / 4.7 x 4.7 x 1.0in Fans Product Size: Approx. 399 x 119 x 27mm / 15.7 x 4.7 x 1.1in ( Manual Measurement, Slight Error May Exist ). Package List: 1 x Water Cooling Radiator24 x Screw