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Excalibur, as the name suggests, is inspired by the legendary sword of King Arthur from the middle ages. The nine massive sword-shaped blades are designed to produce exceptionally high air pressure, which fortify the cooling efficiency when used in dense water cooling radiators or performance heatsinks.
This is the first fan from Cooler Master to adopt Barometric Ball Bearing (BBB) technology.
Excalibur, as the name suggests, is inspired by the legendary sword of King Arthur from the middle ages. The nine massive sword-shaped blades are designed to produce exceptionally high air pressure, which fortify the cooling efficiency when used in dense water cooling radiators or performance heatsinks.
This is the first fan from Cooler Master to adopt Barometric Ball Bearing (BBB) technology.
Barometric Ball Bearing (BBB) TechnologyThe innovative Barometric Ball Bearing technology provides longer life span while remaining lower noise level.
Removable Sword-Shaped Blades with Triangular Blade TipsThe Cooler Master Excalibur R4-EXBB-20PK-R0 is equipped with nine massive sword-shaped blades which generate outstanding high air pressure with balanced airflow for exceptionally cooling efficiency. Triangular blade tips reduce turbulence at fan edges and decrease wind shear noise while keeping maximum sweeping area. The blades are removable for quick and easy cleaning.
Honeycomb Ventilation Meshed FrameThe honeycomb ventilation meshed frame works as a secondary intake to increase airflow under low fan speed operation, or helps reduce noise by releasing excessive turbulence and vibration when the fan spins at high speed.
Sturdy StructureThe Cooler Master Excalibur R4-EXBB-20PK-R0 features 3-piece frame with metal rim for robust structure.
PWM FunctionThe PWM function automatically adjusts fan speeds according to the CPU temperature for efficient cooling and minimized fan noise, a total performance solution at high and low speed operation.
Learn more about the Cooler Master R4-EXBB-20PK-R0
Model
Brand
COOLER MASTER
Model
R4-EXBB-20PK-R0
Details
Type
Case Fan
Compatibility
Case
Bearing Type
Barometric Ball
RPM
600 - 2000 RPM±10%
Air Flow
26.4 - 85.6 CFM±10%
Noise Level
13 - 30 dBA
Power Connector
4 Pin
Color
Black
Features
Features
Air pressure (mmH2O): 0.75 - 3.53 mmH2O Voltage: 12 V DC Current (Ampere): 0.45A Max. Power consumption: 6 W Max.
The innovative Barometric Ball Bearing technology provides longer life span while remaining lower noise level. Removable blades for quick and easy cleaning. Nine massive sword-shaped blades generate outstanding high air pressure with balanced airflow. Triangular blade tips reduce turbulence at fan edges and decrease wind shear noise while keeping maximum sweeping area. 3-piece frame with metal rim provides robust structure. Honeycomb ventilation meshed frame: - Low speed operation works as a secondary intake to increase airflow. - High speed operation helps to reduce noise by releasing excessive turbulence and vibration. PWM function for total performance solution at high and low speed operation.
Dimensions & Weight
Dimensions
120 x 120 x 25mm
Additional Information
Date First Available
March 29, 2010
Customer Reviews of the Cooler Master R4-EXBB-20PK-R0