Features: 1.EFFICIENT HEAT DISSIPATION: Exclusive direct contact technology, 6 heat pipes provide excellent heat dissipation and stacked fin arrays ensure minimal airflow resistance. 2.COMPATIBLE MODELS: CPU air cooler for intel 775 1150 1151 1155 1156 1200 1700 1356 1366, for AMD FM1 AM2 AM2+ AM3 AMD3 AM4. 3.HIGH SPEED: Computer CPU cooler adopts hydraulic bearing fans, dual towers, dual fans, fan speed up to 200010%, high airflow, fast heat dissipation. 4.QUIET DESIGN: This computer CPU cooling fan is only 22dB noise, which allows you to enjoy your computer operation without interruption. 5.EASY INSTALLATION: Intuitive fan bracket design, easy to upgrade and remove the PC CPU cooling fan. 3pin connector type, easy to install and use. specification:Item Type: CPU Cooling Fan Material: Copper, Aluminum Fan Size: Approx. 90 x 90 x 25mm / 3.5 x 3.5 x 1in Color: Black Lighting Effect: No Light Interface Type: 3pin Voltage 12 VDC Rotation Speed: 200010% Noise: 22dB Airflow: 48CFM Lifespan: 50000 Hours Bearing Type: Hydraulic Suitable: For Intel 775 1150 1151 1155 1156 1200 1700 1356 1366 For AMD FM1 AM2 AM2+ AM3 AMD3 AM4 PackageList:1 x CPU Cooling Fan 1 x Bracket 4 x Sets of Nail (One Black and One Transparent As A Set) 1 x Silicone Grease Pack NoteManual measurement, please allow some errors.