note:  !!!! <br /><br />package included:<br />1x cooling fan<br /><br />1.apply technique of gear shaping! large area of heat dissipation makes it perfect!<br />2.ultra-silence; large air flow; being detachable to clean.<br />3.easy for installation.<br />4.fit for cpu: intela775/ a1156/ a1155/amd754 /939/ am2 /am2/am. compatible with core 2 duo/celeron/pentium 4/pentium d/core i7/i5/i3/cereron/pentium/sempron/athlon 64/athlon x2/phenom 64.<br /><br />specification:<br />1.material: aluminiumabs<br />2.fan dimensions: 80lx80wx25hmm<br />3. bearing type: hydraulic<br />4.rated voltage: 12 vdc<br />5.rated current: 0.18｡・.02amp<br />6. air flow: 35 cfm<br />7. noise: 20 dba｡・0%<br />8.fan speed: 2｣ｬ200rpm ｡・0%<br />9. life: 30｣ｬ000 hours