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Zalman ZM-SF3

The packaging of the ZM-SF3 is identical to the previous model’s, but the information on the paper insert is different.

The accessories are the same, too. The price is somewhat higher as the Zalman ZM-SF3 costs $14.

The fan is white except for the silicone corners and the stickers:

 

The impeller is 109 mm in diameter. The motor is 40 mm. The weight is 118 g. The interior surface of the frame is flat, with a barely noticeable rib along its center.

The fan features so-called Shark’s Fin Blades:

These fins are meant to structure the air flow, lower its turbulence and reduce the noise level. We’ve seen this solution in some fans from Noctua and other brands.

The Zalman ZM-SF3 also features an improved EverLasting Quiet bearing with a guaranteed service life of 150,000 hours thanks to nano-composite materials and reduced friction.

The fan rotates at 1500 RPM but you can lower its speed to 900 RPM by means of the included resistor, quieting it down from 23 to 18 dBA.

Interestingly, the information on the sticker suggests that the Zalman ZM-SF3 consumes twice as much power as the ZM-F3 FDB: 4.8 and 2.4 watts, respectively.

The 3-wire cable is 385 mm long.

Now that we’ve taken a look at each fan, let’s move on to practical tests.

 
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