Index > PRODUCT > Fan > BOL.QUIET Tri-Speed
  • 12cm Silent Fan
    • LEPA modular frame with LEPA logo halo ring design to increase more airflow
    • S-blade with winglet design to improve cooling efficiency
    • Patented Barometric Oilless (BOL) Bearing for long life span and silent spinning
    • Extra 7V / 5V adapter provide 3 speed modes for maximum flexibility 
    • Rubber screws to reduce vibration and keep silent operation
    • Removable fan blades for convenient cleaning

    Frame design              Blade design
    The specially designed LEPA halo ring increase the cooling performance by allowing more air being absorbed from 4 sides of the frame.

      The S-Blade composed with an advanced winglet structure which minimize the turbulence and stabilized the airflow; it allows the fan to operate with lower noise level and higher flow rate.


                 Long lifespan, silent spinning 

    Patented BOL (Barometric Oilless) bearing is a self-lubricating design with Nano materials.
    The bearing features minimal friction operation;  therefore it is quieter than traditional 2 ball-bearing.
    The special Nano materials intentionally used for high working temperature, with MTBF≧160,000 hours.


     Model Name



    120 x 120 x 25 mm

     Speed Mode



    Ultra Silence


    1600 rpm (±10%)

    1100 rpm (±10%)

    800 rpm (±10%)

     Air Flow

    81.45 CFM

    56.05 CFM

    40.72 CFM

     Air Flow

    138.39 m3/h

    95.24 m3/h

    69.18 m3/h

     Static Pressure

    1.923 mm-H2O

    1.397 mm-H2O

    0.829 mm-H2O

     Minimal Noise

    18 dBA

    12 dBA

    8 dBA

     Rated Voltage

    12V DC

    7V DC

    5V DC

     Input Current

    0.2 A

    0.1 A

    0.05 A

     Input Power  2.4 W  0.7 W 0.25 W


    ≧160,000 hours


    3 pin connector , 1 x 7V adaptor , 1 x 5V adaptor