Real Silent, only 25 dB(A) High airflow level, 51 CFM 3-pin motherboard connector / RPM monitoring Two 4-pin connectors (male and female)
Model: D14SL-124B Air Flow: 51 CFM Fan Speed: 1000 RPM Noise Level: 25 dBA Power: 1.92 watt Fan Size: 140x140x25 MM Connector: Includes a 3-pin motherboard power, RPM connector and a 4-pin standard power connector