Noctua NF A4x10 FLX Fan 5/12V 4010 Fan Cooling Fan 40x40x10MM 17.9 dB(A) Cooler Fan Radiator For Ender 3 Pro 3D Printer Parts|3D Printer Parts & Accessories| - AliExpress
Noctua introduces new A-series fans and accessories
3D Printable Noctua fan cover 40mmx40mm for Prusa I3 MK2 by Wolfgang Schadow