Description Features: Full function 90mm 12V 3Pin fan silent blades design for excellent airflow, 240010%RPM Speed. Hydraulic bearing can reduce oil spillage and friction, reduce noise and maintain efficient operation. Silent and shock absorbing. Suitable for 1155,1150; CPU Cooler Cooling Fan Copper Core Radiator for 1155,1150 Specifications: Material:Aluminum Alloy Diameter:Approx.9cm/3.54in Fan Noise:25DB Fan Speed:240010%RPM Power:DC12V 2.5W Hydraulic bearing Interface:3Pin for 1155,1150; Note: Please allow 1-2cm errors due to manual measurement,please make sure that you do not mind before you order. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1xCPU Cooler Fan