Product Detail PCI slot mounted / Expels damaging hot air from inside the case Improves system stability and lifespan / Gives extra cooling and enhanced airflow Specifications: Fan Speed: 2600 RPM / Air Flow: 28 CFM Noise Level: 35 dBA / Voltage: 12VDC, 0.14A 4-pin male/female power connector (18-inch cord length from fan to 4-pin power connector) . The "Adaptec PCI Slot Mounted Cooling Fan ACC-9100" is best product for you. We recommended Adaptec PCI Slot Mounted Cooling Fan ACC-9100