Specification Brand : ElectroCookie BulletPoint1 : Powerful Heat Dissipation Structure with Effective Thermal Engineering BulletPoint2 : Maintain CPU Temperature Below 43°C Even in Extreme Overclocking Conditions BulletPoint3 : Included Low Noise 20dBA, 4000rpm Cooling Fan BulletPoint4 : Provided with Easy Setup Guide BulletPoint5 : Compatible with Raspberry pi 4B Only (Not compatible with Pi 3) Color : Nature Color CompatibleDevices : Radiator CoolingMethod : Air ExternallyAssignedProductIdentifier1 : 713838201685 ExternallyAssignedProductIdentifier2 : 0713838201685 IncludedComponents : Fan and Heatsink ItemName : ElectroCookie Raspberry Pi 4 Radial Tower Cooler, CPU Heatsink with Silent Cooling Fan for Raspberry Pi 4 ItemPackageDimensions_Height : 10.6934 centimeters ItemPackageDimensions_Length : 6.9088 centimeters ItemPackageDimensions_Width : 7.7978 centimeters ItemPackageQuantity : 2 ItemTypeKeyword : desktop-computer-heatsinks Manufacturer : ElectroCookie MaximumRotationalSpeed : 4000 rpm ModelNumber : Radial Tower MountingType : Panel Mount NoiseLevel : 20 decibels NumberOfBoxes : 1 NumberOfItems : 1 PartNumber : Radial Tower ProductDescription : ElectroCookie Raspberry Pi 4 Radial Power Cooling Tower, CPU Heatsink with Silent Cooling Fan for Raspberry Pi 4 Model B ProductSiteLaunchDate : 2022-08-31T04:56:13.761Z Size : 90x90x15mm Style : RGB LED Fan SupplierDeclaredDgHzRegulation : not_applicable UnitCount : 1 Voltage : 5 volts