CPU TYPE : Intel P4 socket 775 3.4GHZ All Intel Celeron D Heat sink : Material : AL 6063-T5 Dimension :I|95 x 38 mm DC Fan : Dimension : 95*95*25MM Clour : Black Rate Voltage : 12V DC Rated speed :2200?0% R.P.M. Air Flow 43 CFM Noise : 19dB(A) Bearing type :Ball Bearing Life : 50000 hours