Cooler Master MFX-B9NN-23NPK-R1 SickleFlow 92 Rifle Bearing 92mm PWM Fan, 4Pin PWM

No Colors Needed: Signature cooling performance with an all-black design: a perfect choice for all of the users who want a simple, sleek, and stealthy look.

New Blade Design: Revised curve blade design to improve airflow and air pressure.

Enhanced Fan Frame: Enhanced frame structure, reducing turbulent flow noise increase efficiency.

Sealed Bearing Structure: Two-tier sealing mechanism, preventing dust and lubricating oil leakage while increasing the fan’s operation stability and life span.