Model: CUP492-B Specification: heatsink material: CU Outline Dimension: 88.9*80.7*42.5mm Fan Dimension: 70*70*15mm Rotation Speed: 4800R.P.M Bearing Type: Two ball bearing Voltage: 12V Noise: 40.0dBA Weight: 725.8±5g Craft: copper joint technical Tech Index: 2U Server Xeon 3.6GHZ Characteristic: 1. Applying special desination for backboard and snail buckle, lock more fasten, touched with the CPU to disperse the heat. 2.Special to 2U Server Xeon we have other series, this is one of them,PLS DO NOT HESITATE TO CONNACT WITH ME, OUR PRICE IS GOOD.