Heat sink material：AL6063T5 Weight of heat sink：407.0g Outline Dimension：113*83*70mm Fan Dimension：80*80*25mm Bearing Type：Ball-Bearing Rated speed：2400.0R.P.M Noise：32.0dBA Technical Index：Recommended for CPU： AMD Athlon 3400+ UP Higher Products Specialty： 1、The heat sink look more beautiful due to the anodic treatment2、Easy to get heavy blast volume and wind pressure and control noise efficiently by large-scale 8025 heat sink adoption 3、The thick and solid bottom of heat sink is good to save more heat quantity. Tow sides of the heat sink extend out that look like ?Y?, which is not only to release heat but also to hold the fan. The 20 pieces of full height fin and 2 piece of half height fin(each fin has been treated by ribbing) can enlarge the heat releasing area and the win is easy to blow to the bottom.