Noctua NF-A12x25 PWM test - the ultimate reference fan?
Noctua NF-A12x25 ULN 12V 1200RPM 120mm Ultimate Quality Quiet Fan
Thinking of getting a scythe fan (designed to spin clockwise), put a brake on it so it acts as a stator then put behind a noctua for max static pressure. : r/Noctua