A high-performance cpu cooler is an essential addition to every purpose-built desktop PC. You can breathe a sigh of relief in the knowledge that this Be quiet! DARK ROCK PRO 4 is providing the air cooling your system needs. With the assistance of a high-speed fan and a robust metal heat sink, it draws heat away from your components, and most importantly, your CPU and guarantees a safe temperature in your cabinet. The fan smoothly functions at speeds up to 1500RPM. Speed is regulated automatically. There's no need to worry about disturbing others, as the cooler operates at an almost-silent 24,3dB. The Be quiet! DARK ROCK PRO 4 works with processors with Intel sockets: 1150, 1151, 1155, 1156, 1200, 1366, 1700, 2011, 2011-3 and 2066, and AMD sockets: AM2, AM2+, AM3, AM3+, AM4, FM1, FM2, FM2+ and AM5. The cooler has dimensions of 136 × 163 × 146mm.