Ultra low noise fan, 120x120x25 mm, 12V, 3-pin Molex, 800/600 RPM, max. 8.6 dB (A), >150, 000 h MTTF ^^ Award-winning third-gen 120x25mm S12 fan with Anti-Stall Knobs and Advanced Acoustic Optimisation frame for superior quiet cooling performance ^^ Airflow-optimised design for highly efficient, near-silent ventilation of PC cases and other chassis (intake & exhaust), cabinet cooling, etc. ^^ 3-pin ULN version with 800rpm (600rpm with supplied Low-Noise Adaptor) for serious silent enthusiasts who demand the utmost quietness of operation ^^ Includes anti-vibration mounts, fan screws, Ultra-Low-Noise Adaptor, extension cable and 3:4 -pin adaptor for powering the fan directly from the power supply