Noctua NF A4x10 FLX Silent Cooling Fan 4010 40X40X10mm 4500 or 3700 RPM High Quality 3D Printer Parts For Ender 3 Ender 3Pro|3D Printer Parts & Accessories| - AliExpress
PSA: When ordering new, quiet fans for your printer from Noctua, please note there is a small difference between NF-A4x20 and NF-A20 ... Ooops : r/3Dprinting
Anyone else using Noctua fans on the ender 3 that can chime in on sound? Mine doesnt seem to be any quieter than stock. : r/3Dprinting
Quiet 12V NOCTUA Fan on 24V Creality Ender 3 - YouTube
How to install Noctua fans on a 3D printer
Ender 3 & Ender 3 Pro - Fang for 40x40x20mm Fan Cooler by mr-cal - Thingiverse
The Best Ender 3 (V2/Pro/S1) Fan Upgrades of 2022 | All3DP
Connecting 12v Noctua Fans To The Ender 3 : r/3Dprinting