Zalman ZM-F3 (ZF1225ASH)
The last product in this review comes from Zalman. The ZM-F3 is an entry-level fan that is shipped in a plain cardboard box with a minimum of useful information.
Included with the fan are four silicone pins and a cable with resistor for lowering the rotation speed.
The Zalman ZM-F3 is manufactured in China and costs a mere $5. Its warranty period is 1 year.
The fan has a standard form-factor of 120x120x25 millimeters.
The impeller and motor are 113 and 49 millimeters in diameter, respectively. Three of the fan spokes are 5 millimeters wide; the cable spoke is 10 millimeters wide. The weight of the fan is 164 grams.
The Zalman ZM-F3 is quite an ordinary 120mm fan.
Its rotation speed is 1800 RPM. Using the adapter you can reduce it to 1100 RPM. The air flow and static pressure are not specified. The noise level is 34 dBA at the max speed and 20 dBA at the reduced speed.
The fan runs on a sleeve bearing whose service life is not specified.
The start-up voltage of the fan is 4.8 volts. Its power consumption is 2.2 watts. The 3-wire cable is 400 millimeters long.
Here are the test results:
Well, it was hard to predict such impressive results. An ordinary $5 fan, the Zalman ZM-F3 is just as good as the Scythe Kama Flow 2 which costs twice as much! Moreover, the ZM-F3 is not a new model. It has been selling for about four years already. And it proves to be competitive to the new and more expensive products. It is another question for how long the fan is going to work with such parameters, though.