PSA: If your Ender 3 has an S-360W-24-L PSU and its pretty loud, check the fan voltage. They are sometimes using 12/14V fans running at 24V! : r/ender3
3D Printable Fan 50mm Silencer PSU Ender 3 Pro by Sven Kielmann
Ender 3 Pro and Duet Maestro Guide Part 5: Upgrades - Duet3D
The Best Ender 3 (V2/Pro) Fan Upgrades of 2021 | All3DP
Adventures in Ender 3 Pro Noise Reduction (plus a Review) – Dawning.ca
How to Upgrade Your Ender 3 Power Supply to a MeanWell PSU - Howchoo
How to Upgrade Your Ender 3 Power Supply to a MeanWell PSU - Howchoo
Download STL file Ender 3 V2 External power supply support • 3D print object • Cults