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
Noctua 92x14 Motherboard Fan Holder for Anycubic i3 Mega S by grimrock - Thingiverse
Anycubic Mega X PSU Custom Cover 92mm Quiet Fan by OGPattison | Download free STL model | Printables.com