MASSCOOL 80mm Cooling Fan FD08025S1M3/4 MASSCOOL FD08025S1M3/4 80mm Case Fan, Compatibility: Case Fan, Size: 80mm. Bearing Type: Sleeve, RPM :270010% RPM, Air Flow: 32.95 cfm at 2700 RPM, Noise Level: 26.5 dBA, Power Connector: 3 / 4 pin, Color: Black. Physical Spec: Dimensions: 80 x 80 x 25mm, Manufacturer Warranty: Parts and Labor : 1 year limited . Bearing: Sleeve bearing Rated Voltage: 12 V DC Noise level: 26.5 dBA Air flow: 32.95 CFM at 2,700 RPM Connector: 3-Pin (connect to mainboard)/4-Pin (connect to power supply)