Noiseblocker BlackSilentFan XE2 92mm Fan, 1800RPM Dimensions: 92 x 92 x 25 mm, Speed: 1800 RPM, Max Airflow: 37.6 CFM (65 m3/h), Noise Level: 21 dBA Bearing: Long life sleeve bearing, Connector: 3-pin, MTBF at 25C: 80,000 hours Soft rubber fan screws included for anti-vibration mounting Designed in Germany 3 year manufacturer warranty