Noctua

Noctua NF-A12x25 G2 PWM chromax.Black, Premium-Quality Quiet 120mm PC Fan (Black) Next-gen 120x25mm design for unprecedented quiet cooling performance in both high airflow and high static pressure applications: ideal as a PC case fan, on CPU coolers and water cooling radiators! All-black chromax version with black anti-vibration mounts; 12cm anti-vibration gasket for tighter seal on radiators, fan screws, Low-Noise Adaptor (LNA), extension cable and splitter cable included State-of-the-art engineering (Progressive Bend impeller with winglets and Centrifugal Turbulator, Flow Acceleration Channels, AAO frame) and construction (Sterrox LCP, ultra-tight tip clearance) 4-pin PWM version for automatic speed control via 4-pin PWM motherboard...

Noctua NF-A12x25 G2 PWM Sx2-PP chromax.Black, Dual Fan Set for Push-Pull and Side-by-Side Applications (Black) Dedicated dual fan set with two NF-A12x25 G2 PWM 120x25mm fans that are slightly off-set in speed (+/- ~50rpm) in order to avoid undesired acoustic interaction phenomena State-of-the-art engineering (Progressive Bend impeller with winglets and Centrifugal Turbulator, Flow Acceleration Channels, AAO frame) and construction (Sterrox LCP, ultra-tight tip clearance) Ideal choice for push-pull applications as well as situations where two fans are operating side by side (240/360mm water cooling radiators, case intake or exhaust fans, etc.) All-black chromax version with black anti-vibration mounts; 12cm anti-vibration...