Feature:1. 2 HEAT PIPES: 9CM CPU cooler with direct contact technology, 2 heat pipes provide excellent heat dissipation and stacked fin array ensures minimum airflow resistance.2. DUAL TOWER: CPU air cooler with hydraulic bearing fan, dual tower, single fan, fan speed up to 200010%, high airflow, fast heat dissipation.3. APPLICATIONS: Computer CPU cooler is suitable for intel 775 1150 1151 1155 1156 1200 1700 1356 1366, for AMD FM1/AM2/AM2+/AM3/for AMD3/AM4.4. SILENT DESIGN: Computer CPU cooler silent design, only 22dB noise, enjoy computer operation without interference.5. EASY INSTALLATION: Computer CPU cooling fans are easy to install, intuitive fan bracket design, easy to upgrade and remove the fan.Specification:Item Type: 9CM CPU CoolerMaterial: Copper, AluminumLighting: No lightInterface Type: 3pinFan Size: Approx. 90 x 90 x 25mm / 3.5 x 3.5 x 1.0inVoltage: 12 VDCRotation Speed: 200010%Noise: 22dBAirflow: 48CFMLifespan: 50000 HoursBearing Type: HydraulicApplication: for intel 775 1150 1151 1155 1156 1200 1700 1356 1366, for AMD FM1/AM2/AM2+/AM3/for AMD3/AM4.Package List:1 x Fan1 x Bracket4 Sets x Glue Nail(One Black and One Transparent as a Set)1 x Silicone Grease Pack