Case cooling is becoming more essential these days the better airflow inside your system the cooler and more stable system you will getthat is why we now introduce the cooler master bc fans which combines the best of both worlds features 4 highly intense led fully transparent design quiet operation with low rpm high air flow for maximum cooling performance airflow 446 cfm connector type 3 pin depth 25 cm fan bearing type long life bearing fan speed 1200 rpm form factor fans height