Item :CPU cooler C4P4 428 Specification Heatsink size:80×69×35mm Fan size :70×70×25mm Max air flow :32.1CFM Rated voltage:12 V DC Fan speed:3500±10%R.P.M Noise:28.6 dB( A) Bearing type :Oil Bearing Sphere application: Up to Intel Celeron 478 2.8GHz Up to Intel Pentium 4 478 2.8GHzother accessories: 3*16 screw silica gel 403 device PP bag