Noctua 40x40x10mm 5 Volt Fan NF-A4x10 – Coolerguys
High Quality Noctua Nf-a4x10 Flx 40mm 12v 5v 40x40x10 Cooling Fan 4010 Silent Cooler Fan Radiator 3d Printer Parts For Ender 3 - 3d Printer Parts & Accessories - AliExpress
Noctua fan NF-A4X10 FLX 3700-4500 RPM - 40x40x10 mm - 3pin