Noctua released new A-series fans and additional accessories -
Noctua NF-A4x20 FLX 12V Quiet Computer Cooling Fan 40mm
Creality Noctua NF A4x10 PWM 40mm x 10mm Ultra Quiet Silent Fan 12V 3 Pin Premium Cooling Fan for CR 10/CR 10 S5 mini 3D Printer|3D Printer Parts & Accessories| - AliExpress
For Noctua NF-A4x10 PWM 40mm x 10mm Ultra Quiet Silent Fan 3-Pin DC12V 0.6W 3PIN | eBay