This ENERMAX Cluster PC case fan raises the bar high in computer cooling with excellent thermal performance and optimized acoustics. Its uniquely designed Batwing Blades and Carved Halo Frame work together with Twister Bearing technology delivering performance cooling and low-noise profile. The detachable blade design makes cleaning job a snap. High brightness LED with a unique lighting effect adds eye-catching fun to your chassis, making your system stand out immediately.