Features: 1.OUTSTANDING COOLING: 90mm CPU radiator with direct contact technology, 4 heatpipes for excellent cooling effect, and stacked fin array for minimum airflow resistance. 2.FAST HEAT DISSIPATION: The Computer CPU cooler utilizes a hydraulic bearing fan with a fan speed of 200010% for high airflow and fast heat dissipation. 3.COLORFUL LIGHTING EFFECTS: Computer CPU cooling fans feature cool colorful lighting effects to create a sense of technology that puts you right in the middle of the action. 4.QUIET OPERATION: Computer CPU cooling fans silent design, only 22dB noise, enjoy computer operation without interference. 5.EASY INSTALLATION: CPU cooler is easy to install, easy to upgrade and remove the fan, suitable for B version, quadrate self backed motherboards specification:Item Type: 9CM CPU Cooler Material: Copper, Aluminum Lighting Effect: Colorful Lights Interface Type: 3pin Fan Size: Approx. 90 x 90 x 25mm / 3.5 x 3.5 x 1.0in Voltage: 12 VDC Rotation Speed: 200010% Noise: 22 dB Airflow: 48CFM Lifespan: 50000 Hours Bearing Type: Hydraulic Suitable for B Version: Quadrate Self Backing Backplane Motherboard, A Version C Version Is Not Applicable PackageList:1 x 9CMCPUCooler 1 x SiliconeGreasePack