TechPowerUp published a review on the Noctua NF-P12 redux-1700 PWM Fan
A quote from the article:
Noctua's recent addition to their budget-friendly redux series is the NF-P12 series, which introduces a pressure-optimized fan design at an affordable price point. It delivers good performance at more-than-acceptable noise levels and aims to encourage Noctua adoption in the PC DIY watercooling market.Noctua NF-P12 redux-1700 PWM Fan Review