cooler master blademaster 120mm pwm high air flow silent case fan r4-bmbs-20pk-r0
when ultra-high performance coolers demand additional performance count on blade master pwm fan series to increase cooling efficiency . blade master offers a balance of high air pressure with balanced airflow and minimal noise levels . with the blade master family of 120mm 92mm and 80mm fans unique wave-form blades create increased pressure that exceeds competitor fans at the same airflow . the highest air pressure allows blade master fans to blow directly through dense performance heat sinks for extreme cooling .