The be quiet! Shadow Rock Topflow SR1 uses topflow configuration to bring the overall height, including fan, down to 126mm, while still retaining features of larger coolers. Four 8mm C-Shaped heatpipes run through the be quiet! Shadow Rock Topflow’s copper contact block and through an aluminum fin array. Air flow is handled by be quiet!’s acclaimed 135mm Silent Wings 1500rpm PWM fan, capable of 66.8CFM at an astoundingly quiet 23.5 dBA. This type of attention to silence makes the Shadow Rock Topflow a perfect choice for HTPC users. Be quiet!’s versatile mounting kit is compatible with all current Intel (775/115/1156/1366/2011) and AMD (AM2/3/FM1/FM2) sockets and provides simple, solid installation. The be quiet! Shadow Rock Topflow comes backed with a 3-year warranty.