Zalman ZM-F3 FDB
The Korean firm Zalman is represented with two models in this review. The first of them is ZM-F3 FDB and it comes packed in a plastic blister wrap. The paper insert provides some product-related information on the back.
Besides the fan, the box contains four silicone pins and a cable with step-down resistor.
Zalman’s products are mostly manufactured in China. The ZM-F3 FDB is no exception. It has a 2-year warranty and costs about $10.
As opposed to the inexpensive ZM-F3, the new ZM-F3 FDB features a translucent impeller with seven broad and thick blades:
Its motor is secured on three thin 4mm spokes and one 9mm cable spoke. The impeller is 112 mm in diameter whereas the motor is 41 mm. The weight of the fan is 129 g.
The frame with two bevels on the interior surface is perfectly ordinary.
Thus, this fan isn’t exceptional in any way. It only features a fluid dynamic bearing with a service life of 150,000 hours. The lubricant moves along microchannels on the bearing’s shaft, ensuring a longer service life than with ordinary sleeve bearings.
Zalman also promises a low level of noise: 18 to 23 dBA at 1000 to 1500 RPM. Air flow and static pressure are not listed in the product specs.
The fan’s sticker provides information about the electrical parameters:
The peak power consumption is 2.4 watts. The startup voltage is not declared in the specs but we’ll measure it ourselves. The cable is 400 mm long.