PCShopTalk posted a review on the NOCTUA NF-P14 FLX Fans

In this review I will test and describe the latest fans from Noctua, named NF-P14 FLX, which follow in the footsteps of the already successful NF-P12; the NF-P14 are highly optimized, premium quality 140mm fans with technologies like Vortex-Control Notches, Metal Reinforcements, SCD2 technology and SSO Bearing and offer exceptional airflow, while producing little to no noise.

NOCTUA NF-P14 FLX Fans Review