Features: 1.Designed for 2011 Motherboard: This CPU air cooler is specially designed for 2011 motherboard with backplate, suitable for version B instead of version A and C. 2.7 Blades and 6 Heat Pipes: This desktop CPU cooling fan is designed with 7 fan blades and 6 heat pipes that ensure excellent heat dissipation effects and minimum airflow resistance. 3.Low Noise Operation: This CPU cooling fan adopts sturdy copper and aluminium material. Only 22dB low noise allows you to enjoy computer operation without interference. 4.Easy Connection: This CPU cooler adopts 3pin connector adopts 3pin power connector, which can be easily connected with your CPU and mounted on the motherboard. 5.Colorful Lighting: This CPU fan is featured with colorful lighting that can create immersive and cool gaming experience, easily to match your PC build. specification:Item Type: CPU Air Cooler Material: Copper, Aluminium Light Effects: Colorful Lighting Interface Type: 3pin Fan Size: Approx. 90 x 90 x 25mm / 3.5 x 3.5 x 1.0in ( Manual Measurement, Slight Error May Exist ) Voltage: 12 VDC Speed: 200010% Noise: 22dB Air Volume: 48CFM Life: 50,000 Hours Bearing Type: Hydraulic Application: Designed for 2011 Motherboard With Backplate, Suitable for Version B Instead of Version A and C PackageList:1 x CPUAirCooler 1 x Silicone Grease