Alphacool Shroud & Decoupler 120mm (7mm Thick) incl. 4x M3x37mm Screws (24830)

7mm EPDM rubber shroud decouples 120mm fans from radiators, cutting vibration noise by up to 30% while boosting static pressure through reduced air leakage.

Overview

The Alphacool Shroud & Decoupler 120mm is a precision-engineered accessory for PC water cooling enthusiasts. Made from dense EPDM rubber, it sits between a 120mm fan and radiator or case panel, absorbing motor vibrations and preventing resonance. The 7mm thickness creates an optimal gap that straightens airflow, reducing turbulence and improving cooling efficiency. Four included M3x37mm steel screws provide secure mounting through the shroud into standard fan holes (105mm x 105mm spacing). Compatible with all 120mm fans and radiators, this shroud is an essential upgrade for silent, high-performance systems.

What stands out

• Dual function: vibration decoupling and airflow optimization
• 7mm EPDM rubber construction for long-lasting flexibility
• Includes 4x M3x37mm steel screws for easy installation
• Universal fit for 120mm fans, radiators, and case mounts
• Reduces fan noise without sacrificing cooling performance

Technical details

• Fan size compatibility: 120mm
• Thickness: 7mm
• Material: EPDM rubber
• Colour: Black
• Mounting hole pattern: 105mm x 105mm
• Included screws: 4x M3x37mm (steel)
• Application: PC water cooling, fan mounting
• Number of fans supported: 1
• Installation type: screw-on

Our verdict

A cost-effective solution to eliminate fan vibration and improve airflow. The Alphacool Shroud & Decoupler is a must-have for any builder seeking a quieter, more efficient cooling loop.