Enzotech SLF-1 Pure Copper, Low Profile Heat Sink Forged pure copper Multiple push pin locations for universal mounting on various board assembly (hole to hole distance: 53mm to 59mm) Excellent surface flatness minimizes the interface between heat source and heat sink Fan included (RPM: 8000, CFM: 4.7, Noise: 28 dBA) Dimension: 37 x 37 x 13.5mm