Noiseblocker NB-BlackSilentPro PE-1 92mm x 25mm Ultra Quiet Fan - 1300 RPM - 14 dBA Noteable features include: Low start voltage, Long 6-year manufacturer's warranty, Glass fiber-reinforced chassis, Anti-dust polycarbonate rotor, Developed in conjuction with direct collaboration with the community @ Hardwareluxx.de Manufacturer's P/N: PE-1, Size: 92mm x 92mm x 25mm, Weight: 86g Color: Black frame with transparent, glossy "smoke-black" rotor Rated Voltage: 12V, Operating Voltage: 5 - 13.8V, Start Voltage: 5V, Input Power: 0.81W Speed: 1300 RPM, Static Pressure: 0.752 mm-HO, Maximum Airflow: 24.7 CFM, Noise: 14 dBA, MTBF (25 C): 180,000 Hours, Connector: 3-pin