The CPU radiator base adopts heat pipe direct contact 2. 0 technology. 6 high- efficiency heat pipes closely cover the surface of the CPU, greatly increasing the contact area and allowing heat to be more efficiently conducted to the heat sink fins. Double red light fans to enhance air convection efficiency. Damping rubber material, effectively reducing noiseSpecification: Product name: CPU cooler Radiator size: 135. 4 x 123. 0x 158. 4 mm Heat sink material: 6 direct contact heat pipe/ aluminum fin Heat pipe diameter: 06 mm Fan size: 120x120x25mm Fan speed: 600- 1600 RPM (PWM) ± 10% Air volume: 66. 3 CFM (Max) Wind pressure: 1. 7mmH0± 10%MTTF: 160, 000 hours Noise level: 9~ 31 dBA Fan interface: 4- Pin(PWM) Product weight: 1310g Rated voltage: 12VDC Rated current: 0.23A Power consumption: 2.76W Packaging Information:1* Computer CPU cooler Your satisfaction is our only wish. If you have any questions about our products, you can contact us to learn about our products, or you can contact us