Case and cpu cooling are becoming more essential these days the better airflow inside your system the cooler and more stable system you will get attributes fan diameter 120 mm fan speed 2000 rpm bearing type long life air flow 6969 cfm lifetime 50000 hrs interfaces connector 1 x 3 pin electrical voltage 12 v current 035 amps environmental noise level 19 dba physical form factor case fan internalexternal internal case colour green in the box 1 x cooler master sickleflow 120mm led case fan gree