The largest fan size usually fitted to a computer. Large fans move the same air as smaller fans but at lower speeds so they tend to be quieter.
Size 120 x 120 x 25 mm
Airflow 67.3 cfm
Noise Level 34 dBA
Speed 2000 rpm
Voltage 12v nominal, 6-13.8v operating, 6v starting
Wattage 2.16 watts
Connection 3 pin with sensor lead
At 1000 rpm the airflow is 33.6 cfm and the noise level 21 dBA.