Zalman Dual DF14 Ducted fan, red LED - white / black, 140 mm [ZM-DF14RL]

Here the viewer is striking at first glance, that something is different on the rotor blades. There are a total of nine namely large and nine small additional fan blades vorfindbar. The latter range from former having in return for fan hub toward a recess. It seems a little as if Zalman taken at the big a piece to add that new small fan blades.

Because of the so created Doppelreihigkeit Zalman gives the fan the suffix "Premium Dual Impeller Case Fan". The effect is that the flow behavior of air is optimized so that more airflow is generated at lower volume. This purpose is served, moreover, a second measure, which, however, not obvious at first glance, but only upon closer inspection:

When Zalman DF14 are the webs, which hold the rotor, not on the blow-out, but on the suction side. A result of this violation of the law, the common convention is that the air flow emerges with less turbulence behind the fan. That makes him just as quieter than conventional fans as well as the stock-new development "Advanced Nano Polymer Bearing", short ANB.

This vibration is not transferred from the ZM-DF14 on the Case in mounting in the housing, the white fan frame was equipped with black anti-vibration pads on the outer points and moreover Zalman specifies each of the fans four white silicone pins in with the aid of the DF14 -fan decoupled to the fan locations can be fixed.

The fan has an integrated controller to adjust the speed in three stages. Zalman is nothing less than spectacular ingenuity, because the conversion between the lowest rotational level (600 U / min at 16.5 dB (A)), the middle (900 U / min) and the highest (1,200 U / min at 28 dB (A)) is effected by pressing a button on the web-side fan hub.

Here also a LED lighting is integrated, the fancier at this point and especially a lot of lights in the form of a red cross. Zalman has done right when ZM-DF14 in terms of technology and appearance everything and has a 140-mm fan on the top class.

Technical details:

    Dimensions: 140 x 140 x 27 mm (W x H x D)
    Weight: approx 159 g
    White (frame), Black (rotor blades)
    LED lighting: Red
    Speed ​​600/900/1200 rev / min
    Air flow: max. 108.5 m³ / h
    Static pressure: max. 1,1 mm H2O
    Volume: 16.5 to 28 dB (A)
    Voltage: 12 V
    Connector: 3-Pin
    Cable length: 400 mm
    Life expectancy: 350,000 hours
    Scope of supply:
    1x fan
    4x White Silicone decoupling pins