Panaflo fans are known for large amounts of CFM with little noise, this 92mm fan is the medium speed model and pushes an impressive 48CFM at only 30dBA.
Product Specification: DIMENSION: 92 x 92 x 25mm VOLTAGE: 12VDC CURRENT: 0.2A SPEED: 2450 RPM AIR FLOW: 48.0 CFM NOISE: 30.0 dBA RPM SENSOR: NO CORNERS: Closed
More Information about Panaflo fans here.
Panaflo M1A-Z 92x92x25mm case fan - FBA09A12M - Z