Amazon.com: Noctua NF-A8 5V, Premium Quiet Fan with USB Power Adaptor Cable, 3-Pin, 5V Version (80mm, Brown)
Thicker fan, better properties? Phanteks has a 30 mm fan - HWCooling.net
Noctua NF-A14 Fan - 3DJake International
Amazon.com: Noctua NF-A8 5V, Premium Quiet Fan with USB Power Adaptor Cable, 3-Pin, 5V Version (80mm, Brown)
Antec 30mm Thickness Fans, 120mm x 30mm Case Fans, Storm T3, PWM PC Fans, 120mm Fan, Premium High-Performance Case Fans, 4-pin PWM Connector, Computer Fans with 2200 RPM, Storm T3 Series 3
3D printer Fan Noctua NF-A4x10 FLX 5V/12V Premium Quiet Cooling fan 4010(40*40*10mm)for ENDER 3 heatsink cooler cooling 3pin _ - AliExpress Mobile
THIS is going to be the new Noctua 140 fan! : r/hardware