The ARCTIC Alpine M1-Passive is a completely silent cooling solution for the AMD AM1 platform. It"s cooling performance can keep every AM1 CPU at bay by margin, allowing fully fan-less computers. High passive cooling performance The cooling performance of the Alpine M1-Passive can keep every AM1 CPU at bay by margin and cools efficiently even the most power hungry AM1 APU completely passive. Cooling performance & noise level on AMD Athlon 5350 Quad-Core (full load) Alpine M1-Passive 49 DegreeC 0 Some Stock cooler(4000 RPM, non PWM, unregulated) 46 DegreeC 0.4 Some Complete Silence Silence enthusiasts will definitely love the Alpine M1-Passive. In pair with a well ventilated case the silent AM1 CPU Cooler allows a totally fanless system. Easy Installation The quick and easy mounting system provides excellent stability and merely takes a few minutes. Thanks to the pre-applied MX-2 thermal compound, a quick and clean installation is guaranteed! Compatibility: AMD Socket: AM1 Heatsink Type: Aluminum Extrusion Maximum TDP: 40 W Size & Weight: 77(L) x 77(W) x 70(H) mm at 246g 6 Year Limited Warranty