Editorial Review This is a powerful fan, it's default setting is on full speed, and it's not quiet at full speed. No PWM fans are. With the proper PWM control working, you won't likely experience full speed very often. If you aren't familiar with how the PWM function works, you might want to google it and make sure your bios supports it or your probably going to be experiencing loud fan volumes.
Features 1) Great Quality Fan for 77mm Low Profile PWM CPU fan replacement! 2) Voltage: 12 volt 0.50A Noise: 13dBA -45.8 dBA 3) Speed: 1000-4500 rpm Airflow: 10-45 CFM Bearings: 2 Ball 4) Connector: 4 Pin PWM (8" leads) 5) Dimensions: 77mm x 77mm x 20mm Single Flange Fan
Specification Binding : Personal Computers Brand : Dynatron EAN : 0700621997580 Label : Dynatron Manufacturer : Dynatron ProductGroup : PC Accessory ProductTypeName : COMPUTER_COOLING_DEVICE Publisher : Dynatron Studio : Dynatron Title : Top Motor DF127720BM 77mm x 20mm Single Flange 2 Ball Bearing 4 Pin CPU Fan NEW!