Noctua 40x40x10mm 5 Volt Fan NF-A4x10 – Coolerguys
Noctua NF-A4x10 FLX 40mm Case fans Quiet Cooling Fan 5V 12V PWM Intelligent Temperature Control Chassis Radiator Cooler Fan _ - AliExpress Mobile
5V 12V 24V 40mm Blower Fan 4020 40mmx20mm Turbo Cooling 3D Printer 2pin | eBay
Noctua NF-A6x25 Fan - 3DJake International
Amazon.com: WINSINN 40mm Fan 24V, Ender 3 Fan Upgrade 24 Volt Fans 4010 Dual Ball Bearing, Works with Ender 3 Pro 3X CR-10S (Pack of 2Pcs) : Electronics
STL file Ender 3 S1 Dual 40mm Fan Hot End Duct・3D print design to download・Cults
Noctua fan NF-A4X10 FLX 3700-4500 RPM - 40x40x10 mm - 3pin
Amazon.com: WINSINN 40mm Fan 24V, Ender 3 Fan Upgrade 24 Volt Fans 4010 Hydraulic Bearing, Works with Ender 3 Pro 3X CR-10S (Pack of 5Pcs) : Electronics
NF-F12 iPPC SP 24V 3000RPM PWM IP67 120mm High Performance Fan