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Cooler Master Excalibur Case Fan Review


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Introduction


Fans come in all different shapes and sizes, and what started as a pretty common design quickly transformed into a technical art used to create specialized fans for special purposes.  Some fans are designed to cool heatsinks and direct airflow over a certain area, while others might be simple case fans designed to move massive amounts of air.  Noise is also unique to a fan design and is a typical problem many designers try to limit, if not remove.  Fan noise is generally associated with fan speed but can be enhanced by increases of air pressure, obstructions, blade design, and overall fan size.

In this review we will be looking at a very special fan from Cooler Master called the Excalibur.  The CM Excalibur is a moderately powerful fan designed to provide high air pressure and still remain quiet under normal operation.  The fan does this with a combination of the 9 "sword like" triangle shaped fan blades, unique honeycomb venting, PWM fan control, and a special barometric ball bearing on the fan motor.  

High pressure fans can be used for a variety of things from positive air pressure casemods to cooling densely packed or high volume watercooling radiators.   
Specifications
Model R4-EXBB-20PK-R0
Dimension 120x120x25
Speed (R.P.M.) 600 - 2000 RPM ? 10%
Air Flow (CFM) 26.4 - 85.6 CFM ? 10%
Air pressure (mmH2O) 0.75 - 3.53 mmH2O
Noise Level 13 - 30 dBA
Bearing Type Barometric Ball Bearing
Fan Life Expectancy 100,000 hours
Voltage 12 V DC
Current (Ampere) 0.45A Max.
Power consumption 6 W Max.
Weight 127.8 g
Connector 4 Pin
Extra Rubber screw x 4, Metal screw x 4, Rubber pad x 4, 4-to-3 Pin adapter x 1
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