Fractal Design Dynamic X2 GP-12 & GP-14 are true all-purpose fans, offering good airflow & best in class 100, 000 hours MTBF thanks to the new LLS bearing. Their customized design creates a beautifully aesthetic fan to help keep your system cool, yet quiet. Designed together with our high-end Venturi Series, the Dynamic X2 Series fans feature aerodynamic elements, similarly found in airplane wing designs, with significant noise-reducing elements. Available in two color combinations: pure black, or the classic Fractal Design signature color scheme with white blades & black frame. The Dynamic X2 series are the perfect companion for users looking to make use of an all-purpose fan with an exceptional lifespan. Key features High grade LLS bearing with class leading 100, 000 hours MTBF Equipped with a counter-pull magnet that reduces the axial tension on the bearing Fan geometry optimized for a good balance between static pressure & maximum airflow, resulting in good performance in all usage scenarios Aerodynamically shaped stator struts including the wire strut. Helps reduce noise & unwanted turbulence Stator struts sit on a wide angle to the trailing edge of the blades which result in a lower noise level & smoother noise profile Strategically placed notches near the fan hub on the trailing edge of the blades further reducing the humming noise produced when the blades pass the stator struts A "trip wire" on the rear side of the blades near the leading edge. The trip wire introduces a larger turbulent boundary layer at an earlier stage, this delays the layer separation & improves both airflow & noise characteristics. The customized design of the Dynamic Series fans contributes to a beautiful, cool build Available in two color combinations Available in 120mm & 140mm fan sizes